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28/APRIL/2020
CHAPTER - 1 Big and Small
Parents should ask their wards to differenciate between big and small things using articles in the house, such as a bowl.
Which circle is smaller in size?
ASSIGNMENT
Complete this exercise in the OCB Exercise Copy.
29/APRIL/2020
CHAPTER- 2 (COUNTING NUMBER)
All the natural numbers are called counting numbers. These numbers are like 1, 2, 3, 4, 5,....
EXPLAINED
1. What are Counting Numbers?
2. How to count numbers with pictures?
FOR BETTER UNDERSTANDING WATCH THE VIDEOS
ASSIGNMENT
ASSIGNMENT
Complete the exercises in your OCB Exercise book.
30/APRIL/2020
CHAPTER-3 (Revision of Numbers)
Forward Counting
Counting on requires us to count forward. Forward Counting is counting by adding one more, every time. As 1, 2, 3, 4, 5.....
FOR BETTER UNDERSTANDING WATCH VIDEOS
Forward Counting
ASSIGNMENTS
Copy and complete this exercise in the OCB Exercise Copy.
Copy and complete this exercise in the OCB Exercise Copy.
1/MAY/2020
CHAPTER-3 (Revision with Numbers)
Backward Counting
Counting back requires us to count backward. Backward Counting is counting by removing one, every time. As 5, 4, 3, 2, 1...
FOR BETTER UNDERSTANDING WATCH VIDEO
Backward Counting
ASSIGNMENTS
Draw and fill in to complete these exercises in the OCB Exercise Copy.
ASSIGNMENTS
Draw and fill in to complete these exercises in the OCB Exercise Copy.
2/MAY/2020
CHAPTER-3 (Revision of Numbers)
FOR BETTER UNDERSTANDING WATCH VIDEO
2. Write these number names in figures.
Fifteen-
UNDERSTANDING ORDINAL NUMBERS.
FOR BETTER UNDERSTANDING WATCH THE VIDEO
ASSIGNMENT
Copy and complete this exercise in the OCB Exercise Copy.
Copy and complete this exercise in the OCB Exercise Copy.
4/5/2020
CHAPTER-3 REVISION OF NUMBERS AND NUMBER LINES
A line on which numbers are marked at equal distance is called a number line. Numbers increase from left to right and can begin with any number.
FOR BETTER UNDERSTANDING WATCH THE VIDEOS
ASSIGNMENT
(Do all the exercises in your OCB ex.book)
5/5/2020
CHAPTER -3 REVISION OF NUMBERS AND THEIR NAMES
Just like everything in the world, numbers too have a name. Lets us learn them.
ASSIGNMENT
1. Copy these Number Names (1 to 20) in your OCB exercise book and learn them.
6/5/2020
CHAPTER-3 REVISION OF NUMBERS AND THEIR NAMES
ASSIGNMENT
1. Copy these Number Names (21 to 50) in your OCB exercise book and learn them.
07/05/2020
CHAPTER -3 REVISION OF NUMBERS
ASSIGNMENT
Do all exercises in your OCB exercise book.
1. Write the names of these numbers.
Fifteen-
Ten-
Eleven-
Twenty-
Thirty-five-
08/05/2020
CHAPTER-4 ORDINAL NUMBERS
An Ordinal Number is a number that tells the position of someone or something, such as 1st, 2nd, 3rd, 4th, 5th etc. Most ordinal numbers end with "th" except for one ⇒ first (1st), two ⇒ second (2nd) and three ⇒ third (3rd).UNDERSTANDING ORDINAL NUMBERS.
Look at the picture. Here ordinal numbers are used to show the position of children in a race.
ASSIGNMENT
Do all exercises in your OCB Ex-book. Fill in the blanks with ORDINAL NUMBERS.
(1) Zebra is the _____animal
(2) Goat is the _______animal.
(3) Sheep is the______animal.
(4) Rhino is the______ animal.
(5) Deer is the ______ animal.
(6) Camel is the_____ animal.
(7) Lion is the _____ animal.
(8) Monkey is the _____ animal.
(9) Elephant is the _____ animal.
(10) Giraffe is the _____ animal
ASSIGNMENTS
(Do all the assignments in your OCB Ex-book)
1. Write the correct symbol '>', '<' or '=' for each.
11/MAY/2020
Chapter-4 Comparing Numbers
Now watch this video...
ASSIGNMENTS
(Do all the assignments in your OCB Ex book)
1. Fill in the blanks.
i) _____ is before 59
ii) 63 is before _____
iii) _____ is before 70
iv) _____ is before 99
v) 49 is before _____
2. Tick (✔) the correct sentence and cross (×) the wrong sentence.
i) 36 is before 35 _____
ii) 33 is before 32 _____
9/MAY/2020
Chapter-4 Comparing Numbers
To compare two numbers means to find whether;-
1) One number is greater than another number. (>)
2) One number is less than another number. (<)
3) One number is equal to another number. (=)
If the number on the left is greater than the number on the right, we put the (greater than) '>' sign.
If the number on the left is smaller than the number on the right, we put the (less than) '<' sign.
If both the numbers are same, we then put the (equal to) '=' sign.
Now watch this video...
(Do all the assignments in your OCB Ex-book)
1. Write the correct symbol '>', '<' or '=' for each.
11/MAY/2020
Before Numbers
Before number - means the predecessor which is 1 less or 1 smaller than the given number. A number which comes before any number is called its predecessor.
For example since 7 comes before 8, hence 7 is the predecessor of 8 (as shown below).
(Do all the assignments in your OCB Ex book)
1. Fill in the blanks.
i) _____ is before 59
ii) 63 is before _____
iii) _____ is before 70
iv) _____ is before 99
v) 49 is before _____
2. Tick (✔) the correct sentence and cross (×) the wrong sentence.
i) 36 is before 35 _____
ii) 33 is before 32 _____
iii) 87 is before 88 _____
iv) 96 is before 97 _____
v) 73 is before 72 _____
3. Copy this exercise and complete it in your OCB.
Chapter-4 Comparing Numbers
Now watch this video...
ASSIGNMENTS
(Do all the assignments in your OCB Ex book)
1. Fill in the blanks.
i) ____ is after 86
ii) _____ is after 53
iii) 63 is after _____
iv) _____ is after 74
v) 28 is after _____
2. Tick (✔) the correct sentence and cross (×) the wrong sentence.
i) 20 is after 19 _____
ii) 43 is after 42 _____
iii) 39 is after 40 _____
iv) 62 is after 63 _____
v) 96 is after 95 _____
3.
Chapter-4 Comparing Numbers
3. Copy this exercise and complete it in your OCB.
12/MAY/2020
Chapter-4 Comparing Numbers
After Numbers
After number - means the successor which is 1 more or 1 greater than the given number. A number which comes after any number is called its successor.
For example since 8 comes after 7, hence 8 is the successor or the after number of 7 (as shown below).
(Do all the assignments in your OCB Ex book)
1. Fill in the blanks.
i) ____ is after 86
ii) _____ is after 53
iii) 63 is after _____
iv) _____ is after 74
v) 28 is after _____
2. Tick (✔) the correct sentence and cross (×) the wrong sentence.
i) 20 is after 19 _____
ii) 43 is after 42 _____
iii) 39 is after 40 _____
iv) 62 is after 63 _____
v) 96 is after 95 _____
3.
13/MAY/2020
Chapter-4 Comparing Numbers
In between numbers
An In between number lies in the middle of two numbers. The middle number is one more than the previous number and one less than the next number. For example: 5 lies in between 4 and 6. Here, 5 is one more than 4, but one less than 6 (as shown below).
Now watch this video...
ASSIGNMENTS
(Do all the assignments in your OCB Ex-book)
1. What comes in between?
a) 69 _____ 71
b) 94 _____ 96
c) 55 _____ 57
d) 26 _____ 28
e) 47 _____ 49
2.What comes in between?
Ex2.
Now watch this video..
Assignments:
20/05/2020
3. Fill in the blanks to justify and complete the addition sentences below.
b) 8 - 7 = ____
c) 6 - 2 = ____
d) 9 - 4 = ____
e) 3 - 2 = ____
f) 4 - 1 = ____
g) 7 - 3 = ____
h) 4 - 0 = ____
Chapter - 7 (Subtraction)
Assignment:
Now, copy the above numbers from 1 to 99 and circle every second number begin with 2. You will get 2, 4, 6, 8 etc.
EVEN NUMBERS: All numbers that end with 2, 4, 6, 8 or 0 are even numbers. So, 2, 4, 6, 8, 10, 12 etc are known as even numbers.
Assignments:
Circle the even numbers in the chart given below.
20/JUNE/2020
Now, copy the above numbers from 1 to 99 and circle every second number begin with 1. You will get 1, 3, 5, 7 etc.
ODD NUMBERS: All numbers that end with 1, 3, 7 or 9 are ODD numbers. So, 1, 3, 5, 7, 9, 11, 13 etc are known as odd numbers.
Assignments:
Circle the odd numbers in the chart given below.
(Page no. 14) do exercise No 1.in text book.
14/MAY/2020
Chapter-4 Comparing Numbers
ASSIGNMENTS
(Do all the assignments in your OCB Ex-book)
Ex1.
15/MAY/2020
Chapter-4 Comparing Numbers
Ascending Order
Ascending order means arranging the numbers from smaller to bigger.
Like..
ASSIGNMENT
(Do all the exercises in your OCB Ex-copy)
EX-1
EX-2
16/MAY/2020
Chapter-4 Comparing Numbers
Descending Order
Descending order means arranging the numbers from bigger to smaller.
Like..
Now watch this video..
ASSIGNMENT
(Do all the exercises in your OCB Ex-copy)
1. Arrange the given numbers from greatest to least.
2. Arrange the given number from greatest to least.
18/05/2020
GREATEST AND SMALLEST NUMBERS
(A) GREATEST NUMBERS
To find the greatest number among these we will arrange them in ascending order.
The last number we get is the greatest number. So 88 is the greatest number here.
76
|
<
|
79
|
<
|
80
|
<
|
85
|
<
|
88
|
(B) SMALLEST NUMBERS
To find the smallest among these we will arrange in descending order.
The last number we get is the smallest number. So 15 is the smallest number here.
58
|
>
|
52
|
>
|
40
|
>
|
38
|
>
|
15
|
ASSIGNMENT
Copy the following exercises in your OCB-Mathematics exercise book
Ex.1 Circle the greatest number in each line.
Ex.1 Circle the greatest number in each line.
Ex.2 Circle the smallest number in each line.
19/05/2020
TENS AND ONES
Tens: 10 Ones makes 1 ten. Like,
10 blocks = 1 ten
Understand the following-
a) 10 can be thought of as a bundle of 10 ones called '1 Ten'.
b) The numbers from 11 to 19 are composed of 1 Ten and and one, two, three, four, five, six, seven, eight, or nine ones.
c) The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 are referred to as one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).
b) The numbers from 11 to 19 are composed of 1 Ten and and one, two, three, four, five, six, seven, eight, or nine ones.
c) The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 are referred to as one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).
Example 1
i) 13 Ones = 10 Ones + 3 Ones
= 1 Ten and 3 Ones
ii) 27 Ones = 20 Ones + 7 Ones
= 2 Tens and 7 Ones
Assignments:
Do the following in your OCB-Mathematics notebook.
20/05/2020
PLACE VALUE
Place Value: Place value can be defined as the value represented by a digit in a number on the basis of its position in that number.
In 13548,
1 is in ten thousands place and its place value is 10,000,
3 is in thousands place and its place value is 3,000,
5 is in hundreds place and its place value is 500,
4 is in tens place and its place value is 40,
8 is in ones place and its place value is 8.
Now watch this video.....
Assignment:
1. Copy the exercise and fill up the columns in your OCB-Mathematics notebook.
21/05/2020
FACE VALUE
Face value The face value is always the same in digits. All digits have the same face value.
Now watch the video....
Now watch the video....
Assignment:
A) Write the place value of the underlined digits in following numbers.
22/05/2020
EXPANDED FORM (Long Form)
Expanded form of a number can be obtained by breaking it and using the place value of digits in the number.
EXAMPLE 1: write the expanded form of number 48.
8 ones (8 x 1 = 8)
4 tens (4 x 10 = 40)
Expanded form of number 48 = 40 + 8
Watch this video...
ASSIGNMENT
Write the numbers given below in expanded form in your OCB ex-book.
23/MAY/2020
COMPACT FORM (Short Form)
The compact form of a number is written using the digits according to their place value.
Example 1: Write 90 + 7 in compact form.
90+7
7 ones
9 tens
Compact form of 90 + 7 = 97
ASSIGNMENT
Write in compact form in your OCB ex-book.
20 + 6 =
|
26
|
20 + 2 =
|
30 + 6 =
| ||
10 + 7 =
|
60 + 8 =
|
10 + 2 =
| |||
30 + 8 =
|
50 + 2 =
|
20 + 3 =
| |||
60 + 6 =
|
40 + 7 =
|
40 + 4 =
| |||
50 + 0 =
|
30 + 9 =
|
50 + 4 =
| |||
20 + 7 =
|
70 + 6 =
|
60 + 9 =
| |||
80 + 8 =
|
20 + 8 =
|
90 + 9 =
|
26/MAY/2020
Self Assessment Test
1. Do as directed in your OCB exercise-book.
COUNT FORWARD → FROM 38 TO 49
| |||||||||||
38
|
42
| ||||||||||
COUNT FORWARD → FROM 88 TO 99
| |||||||||||
90
|
95
| ||||||||||
COUNT BACKWARD ← FROM 62 TO 51
| |||||||||||
62
|
57
| ||||||||||
COUNT BACKWARD ← FROM 33 TO 22
| |||||||||||
30
|
26
| ||||||||||
2. Write the missing numbers on the Number Line.
27/MAY/2020
Self Assessment Test
1. Write in words.
a)
|
36
|
Thirty six
|
b)
|
54
| |
c)
|
32
| |
d)
|
19
| |
e)
|
22
| |
f)
|
58
| |
g)
|
77
| |
h)
|
69
| |
i)
|
45
| |
j)
|
83
|
2. Write in numerals.
a)
|
Ninety
|
90
|
b)
|
Twenty three
| |
c)
|
Forty eight
| |
d)
|
Eighty nine
| |
e)
|
Sixty seven
| |
f)
|
Fifty
| |
g)
|
Forty two
| |
h)
|
Ninety one
| |
i)
|
Seventy three
| |
j)
|
Eighty eight
|
3. Match the following ordinal numbers with their corresponding numbers.
a)
|
Fifth
|
a)
|
6
|
b)
|
Seventh
|
b)
|
5
|
c)
|
Ninth
|
c)
|
4
|
d)
|
Sixth
|
d)
|
9
|
e)
|
Fourth
|
e)
|
7
|
28/MAY/2020
Self Assessment Test
1. Put the correct sign '>', '<' or '=' (Greater than, less than or equal to).
a) 26 ____ 16 b) 63 ____ 36
c) 10 ____ 13 d) 97 ____ 79
e) 95 ____ 25 f) 26 ____ 26
g) 72 ____ 76 e) 45 ____ 45
2. Look at the following numbers and fill in the blanks.
[ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 ]
a) 25 comes before _______.
b) 27 comes after _______.
c) 21 comes before ________.
d) 24 comes between ______ and ______.
e) 29 comes after _______.
3. What comes before?
a) _____ 94
b) _____ 84
c) _____ 70
d) _____ 44
e) _____ 36
29/MAY/2020
Self Assessment Test
1. What comes in between?
a) 94 _____ 96
b) 71 _____ 73
c) 20 _____ 22
d) 78 _____ 80
e) 55 _____ 57
2. Arrange the numbers in ascending order(smallest to greatest).
a) 37, 57, 47, 27, 97
Ans:
b) 99, 61, 21, 36, 85
Ans:
c) 29, 35, 49, 52, 90
Ans:
d) 9, 18, 57, 43, 69
Ans:
e) 90, 74, 61, 49, 89
Ans:
3. Arrange the numbers in descending order(greatest to smallest).
a) 35, 11, 10, 29, 18
Ans:
b) 11, 13, 21, 40, 22
Ans:
c) 78, 99, 90, 69, 89
Ans:
d) 18, 48, 31, 58, 34
Ans:
e) 32, 45, 62, 41, 18
Ans:
30/MAY/2020
Self Assessment Test
1/JUNE/2020
Chapter - 6 (Addition)
Addition: When we put things or numbers together, we call it addition. The sign of addition is '+' (plus). The answer we get is known as the sum.
For example:
Now watch the video...
Assignment
Draw and complete the following sums in the Mathematics-OCB.
2/JUNE/2020
Chapter - 6 (Addition)
Assignment
Do the following sums in the Mathematics- OCB.
1)
|
6
|
2)
|
7
|
3)
|
8
|
4)
|
7
| ||||||||
+
|
1
|
+
|
2
|
+
|
1
|
+
|
3
| ||||||||
5)
|
9
|
6)
|
5
|
7)
|
4
|
8)
|
4
| ||||||||
+
|
1
|
+
|
2
|
+
|
3
|
+
|
6
| ||||||||
3/JUNE/2020
Chapter - 6 (Addition)
Do the following sums in the Mathematics- OCB.
04/JUNE/2020
1)
|
5
|
2)
|
9
|
3)
|
6
|
4)
|
8
| ||||||||
+
|
1
|
+
|
2
|
+
|
1
|
+
|
3
| ||||||||
5)
|
4
|
6)
|
8
|
7)
|
3
|
8)
|
6
| ||||||||
+
|
1
|
+
|
2
|
+
|
3
|
+
|
6
| ||||||||
9)
|
9
|
10)
|
5
|
11)
|
2
|
12)
|
7
| ||||||||
+
|
3
|
+
|
2
|
+
|
1
|
+
|
3
| ||||||||
13)
|
1
|
14)
|
9
|
15)
|
7
|
16)
|
7
| ||||||||
+
|
1
|
+
|
2
|
+
|
1
|
+
|
7
| ||||||||
05/JUNE/2020
Self Assessment Test
Watch the video.......
Now do the following assignment in your Math-OCB.
06/JUNE/2020
Self Assessment Test
1. Do as directed in the Mathematics-OCB.
COUNT FORWARD FROM 9 TO 20
| |||||||||||
9
|
13
|
17
| |||||||||
COUNT FORWARD FROM 45 TO 56
| |||||||||||
47
|
50
|
54
| |||||||||
COUNT BACKWARD FROM 78 TO 67
| |||||||||||
78
|
75
|
70
| |||||||||
COUNT BACKWARD FROM 90 TO 79
| |||||||||||
88
|
85
|
80
| |||||||||
2. Write in words.
a) 5 -
b) 11 -
c) 17 -
d) 32 -
e) 44 -
f) 22 -
g) 36 -
h) 78 -
08/JUNE/2020
Self Assessment Test
Do the following exercises in your Mathematics-OCB.
Ex.1 Circle the greatest number in each line.
Ex.2 Circle the smallest number in each line.
DATE - 09/JUNE/2020
Self Assessment Test (SAT)
Do the following SAT in your Mathematics-OCB.
Write in figures.
a) Ninety
|
→
| |
b) Twenty nine
|
→
| |
c) Fifty one
|
→
| |
d) Thirty nine
|
→
| |
e) Twenty three
|
→
| |
f) Seventy four
|
→
| |
g) Sixty seven
|
→
| |
h) Ninety four
|
→
| |
i) Seventy eight
|
→
| |
j) Eighty nine
|
→
| |
k) Sixty six
|
→
| |
l) Eighty nine
|
→
| |
m) Forty two
|
→
| |
n) Eighty three
|
→
| |
o) Eight
|
→
| |
p) Forty eight
|
→
|
DATE - 10/JUNE/2020
Self Assessment Test
Do the following SAT in your Mathematics-OCB.
Put the correct sign '>', '<' or '=' (Greater than, less than or equal to).
(a) 26__16
(b) 63__36
(b) 63__36
(c) 37__37
(d) 35__54
(e) 71__67
(e) 71__67
(f) 48__84
(g) 17__17
(h) 84__84
(h) 84__84
(i) 52__72
(j) 15__25
(k) 95__25
(l) 26__26
(m) 45__45
(n) 100__90
(o) 37__32
(p) 72__76
(q) 50__58
(r) 97__79
(s) 82__85
(t ) 72__72
(u) 80__60
DATE - 11/JUNE/2020
Self Assessment Test
Do the following SAT in your Mathematics-OCB.
A) Write the place value of the underlined digits in following numbers.
(a) 39
(b) 41
(c) 32
(d) 26
(e) 29
(f) 34
(g) 33
(h) 62
(i) 43
(j) 52
B)Do the following sums in the Mathematics- OCB.
1)
|
7
|
2)
|
6
|
3)
|
5
|
4)
|
2
| ||||||||
+
|
8
|
+
|
5
|
+
|
1
|
+
|
3
| ||||||||
5)
|
8
|
6)
|
4
|
7)
|
9
|
8)
|
5
| ||||||||
+
|
3
|
+
|
4
|
+
|
8
|
+
|
4
| ||||||||
DATE - 12/JUNE/2020
Chapter - 7 (Subtraction)
Page no. 57
Subtraction: When we remove or take away a few things or numbers from a number or group, we called it subtraction. Subtraction is signified by the minus sign (−).
For example,
 | Start with 5 apples, then subtract 2, we are left with 3 apples. |  | |
This can be written:
as 5 − 2 = 3
| |||
Now watch the video....
Assignment: Do the following in your Mathematics-OCB.
On Page No. , do exercise No
a) 9 - 4 = ____
b) 8 - 7 = ____
c) 6 - 2 = ____
d) 9 - 4 = ____
e) 3 - 2 = ____
f) 4 - 1 = ____
g) 7 - 3 = ____
h) 4 - 0 = ____
13/JUNE/2020
Chapter - 7(Subtraction)
Watch the video and do the following sums in Maths - OCB
Watch the video and do the following sums in Maths - OCB
Assignment:
Do exercise No .2(Page no. 58)
a)
|
9 - 3 =
| |
b)
|
5 - 2 =
| |
c)
|
5 - 4 =
| |
d)
|
8 - 6 =
| |
e)
|
9 minus 4 equals
| |
f)
|
7 reduced by 5 is
| |
g)
|
3 decreased from 6 equals
| |
h)
|
6 less than 8 is
| |
i)
|
5 subtracted from 9 gives
| |
j)
|
The difference between 6 and 2 is
|
15/JUNE/2020
Assignment:
Subtract using number line and fill in the blanks.
(Page no. 58) Do exercise No .3
a) 7 - 4 = 3
b) 9 - 5 = _____
c) 5 - 2 = _____
d) 8 - 6 = _____
e) 8 - 3 = _____
f) 7 - 5 = _____
16/JUNE/2020
Chapter - 7(Subtraction)
Assignment:
Assignment:
(Page no. 61) Do exercise No .1
Do the following subtractions in your Mathematics-OCB.
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
8
|
4
|
9
|
6
|
8
|
5
|
6
|
7
| |||||||
-
|
6
|
3
|
-
|
3
|
4
|
-
|
5
|
3
|
-
|
3
|
5
| |||
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
3
|
8
|
8
|
7
|
4
|
8
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7
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4
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-
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2
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7
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-
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6
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5
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-
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2
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7
|
-
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2
|
4
| |||
T
|
O
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T
|
O
|
T
|
O
|
T
|
O
| |||||||
8
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2
|
4
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5
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3
|
9
|
5
|
8
| |||||||
-
|
5
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2
|
-
|
2
|
5
|
-
|
2
|
0
|
-
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3
|
3
| |||
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
5
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9
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6
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6
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6
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7
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8
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2
| |||||||
-
|
2
|
4
|
-
|
3
|
6
|
-
|
1
|
5
|
-
|
3
|
2
| |||
17/JUNE/2020
Chapter - 7 (Subtraction)
Assignment:
Assignment:
(Page no. 63) Do exercise No .1
Do the following subtractions in your Mathematics-OCB.
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
5
|
8
|
6
|
9
|
9
|
9
|
8
|
6
| |||||||
-
|
4
|
-
|
6
|
-
|
4
|
-
|
6
| |||||||
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
3
|
7
|
7
|
8
|
2
|
7
|
9
|
5
| |||||||
-
|
6
|
-
|
6
|
-
|
4
|
-
|
4
| |||||||
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
4
|
5
|
9
|
7
|
8
|
9
|
9
|
2
| |||||||
-
|
5
|
-
|
5
|
-
|
3
|
-
|
8
| |||||||
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
7
|
5
|
4
|
0
|
6
|
7
|
8
|
4
| |||||||
-
|
8
|
-
|
-
|
9
|
-
|
9
| ||||||||
18/JUNE/2020
Chapter - 7 (Subtraction)
Assignment:
(Page no. 65) Do exercise No .1
Do the following subtractions in your Mathematics-OCB.
Do the following subtractions in your Mathematics-OCB.
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
9
|
5
|
8
|
3
|
8
|
4
|
9
|
5
| |||||||
-
|
5
|
6
|
-
|
5
|
5
|
-
|
3
|
7
|
-
|
4
|
8
| |||
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
8
|
6
|
7
|
5
|
9
|
7
|
7
|
8
| |||||||
-
|
5
|
7
|
-
|
3
|
6
|
-
|
3
|
9
|
-
|
4
|
9
| |||
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
5
|
0
|
9
|
6
|
8
|
6
|
8
|
6
| |||||||
-
|
2
|
3
|
-
|
3
|
5
|
-
|
1
|
9
|
-
|
3
|
8
| |||
T
|
O
|
T
|
O
|
T
|
O
|
T
|
O
| |||||||
7
|
4
|
5
|
3
|
5
|
6
|
6
|
0
| |||||||
-
|
1
|
5
|
-
|
2
|
6
|
-
|
2
|
7
|
-
|
3
|
6
| |||
19/JUNE/2020
Chapter - 8 (Skip Counting)
Study the numbers from 1 to 99 (page no. 67).
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
32
|
33
|
34
|
35
|
36
|
37
|
38
|
39
|
40
|
41
|
42
|
43
|
44
|
45
|
46
|
47
|
48
|
49
|
50
|
51
|
52
|
53
|
54
|
55
|
56
|
57
|
58
|
59
|
60
|
61
|
62
|
63
|
64
|
65
|
66
|
67
|
68
|
69
|
70
|
71
|
72
|
73
|
74
|
75
|
76
|
77
|
78
|
79
|
80
|
81
|
82
|
83
|
84
|
85
|
86
|
87
|
88
|
89
|
90
|
91
|
92
|
93
|
94
|
95
|
96
|
97
|
98
|
99
|
Now, copy the above numbers from 1 to 99 and circle every second number begin with 2. You will get 2, 4, 6, 8 etc.
EVEN NUMBERS: All numbers that end with 2, 4, 6, 8 or 0 are even numbers. So, 2, 4, 6, 8, 10, 12 etc are known as even numbers.
Assignments:
Circle the even numbers in the chart given below.
1
|
2
|
5
|
9
|
8
|
72
|
19
|
39
|
22
|
73
|
10
|
11
|
13
|
92
|
39
|
85
|
21
|
89
|
71
|
7
|
34
|
47
|
80
|
91
|
10
|
67
|
84
|
30
|
15
|
48
|
18
|
26
|
14
|
79
|
75
|
25
|
60
|
16
|
55
|
29
|
86
|
17
|
12
|
87
|
78
|
83
|
31
|
82
|
51
|
59
|
20/JUNE/2020
Chapter - 8 (Skip Counting)
Study the numbers from 1 to 99 (page no. 69).
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
32
|
33
|
34
|
35
|
36
|
37
|
38
|
39
|
40
|
41
|
42
|
43
|
44
|
45
|
46
|
47
|
48
|
49
|
50
|
51
|
52
|
53
|
54
|
55
|
56
|
57
|
58
|
59
|
60
|
61
|
62
|
63
|
64
|
65
|
66
|
67
|
68
|
69
|
70
|
71
|
72
|
73
|
74
|
75
|
76
|
77
|
78
|
79
|
80
|
81
|
82
|
83
|
84
|
85
|
86
|
87
|
88
|
89
|
90
|
91
|
92
|
93
|
94
|
95
|
96
|
97
|
98
|
99
|
Now, copy the above numbers from 1 to 99 and circle every second number begin with 1. You will get 1, 3, 5, 7 etc.
ODD NUMBERS: All numbers that end with 1, 3, 7 or 9 are ODD numbers. So, 1, 3, 5, 7, 9, 11, 13 etc are known as odd numbers.
Assignments:
Circle the odd numbers in the chart given below.
2
|
85
|
89
|
42
|
17
|
3
|
75
|
66
|
7
|
5
|
82
|
45
|
15
|
11
|
83
|
50
|
86
|
39
|
53
|
56
|
14
|
24
|
65
|
77
|
37
|
47
|
98
|
21
|
48
|
67
|
16
|
84
|
41
|
88
|
60
|
10
|
21
|
79
|
35
|
10
|
69
|
9
|
30
|
49
|
74
|
62
|
99
|
57
|
81
|
78
|
22/JUNE/2020
Chapter - 8 (Skip Counting)
Study the numbers from 1 to 99 (page no. 69).
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
32
|
33
|
34
|
35
|
36
|
37
|
38
|
39
|
40
|
41
|
42
|
43
|
44
|
45
|
46
|
47
|
48
|
49
|
50
|
51
|
52
|
53
|
54
|
55
|
56
|
57
|
58
|
59
|
60
|
61
|
62
|
63
|
64
|
65
|
66
|
67
|
68
|
69
|
70
|
71
|
72
|
73
|
74
|
75
|
76
|
77
|
78
|
79
|
80
|
81
|
82
|
83
|
84
|
85
|
86
|
87
|
88
|
89
|
90
|
91
|
92
|
93
|
94
|
95
|
96
|
97
|
98
|
99
|
Now, copy the above numbers from 1 to 99 and circle every fifth numbers begin with 5. You will get 5, 10, 15, 20, etc.
Assignment:
Write the above circled numbers in the boxes given below.
23/JUNE/2020
Chapter - 8 (Skip Counting)
Study numbers from 1 to 99 and do the following in your Maths-OCB (page no. 72).
What number is 2 more than
| |
20
|
22
|
89
| |
12
| |
46
| |
77
| |
16
| |
23
| |
48
| |
31
| |
24/JUNE/2020
Chapter - 8 (Skip Counting)
Study numbers from 1 to 99 and do the following in your Maths-OCB (page no. 72).
What number is 2 less than
| |
55
|
57
|
91
| |
27
| |
15
| |
39
| |
42
| |
36
| |
96
| |
70
| |
25/JUNE/2020
Chapter – 2 (Revision of numbers)
Study the Forward and Backward counting.
(Page no. 11)
(Page no. 11)
26/JUNE/2020
Chapter - 2(Revision of numbers)
Study the number line(Page no. 14) do exercise No 1.in text book.
1. Write the missing numbers on the Number Line.
29/JUNE/2020
Chapter - 2 (Revision of numbers )
Assignment : (Page no. 15) do exercise No .1 in text book.
30/JUNE/2020
Chapter - 2(Revision of number)
Assignment: (Page no. 16) do exercise No .1 in text book.
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