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Online Quiz (
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Questions Per Quiz =
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10
Grade 2 - Mathematics
1.42 Adding and Subtracting 9 Mentally
Method
:
Read out the equations given.
9 can be written as 10-1.
Example
: 43-9
We can write this as 43-10+1
Answer : 34
.
Example
: 53+9
We can write this as 53+10-1
Answer : 62
Directions:
Find the missing number. Also write atleast 5 examples of your own.
Q 1
: 62 - 9 = ? (Hint: 62-10+1)
51
52
53
54
Q 2
: 71 + 9 = ? (Hint: 71+10-1)
80
81
79
82
Q 3
: 61 - 9 = ? (Hint: 61-10+1)
50
53
52
51
Q 4
: 88 + 9 = ? (Hint: 88+10-1)
96
99
98
97
Q 5
: 23 + 9 = ? (Hint: 23+10-1)
31
32
33
35
Q 6
: 54 + 9 = ? (Hint: 54+10-1)
62
64
63
65
Q 7
: 47 - 9 = ? (Hint: 47-10+1)
36
37
39
38
Q 8
: 31 - 9 = ? (Hint: 31-10+1)
23
22
20
21
Question 9: This question is available to subscribers only!
Question 10: This question is available to subscribers only!
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