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Date:___________________
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Grade 2 - Mathematics
1.22 Addition of Three One Digit Numbers
Method:
First add two numbers.
Add the third number to the sum of first two.
It does not matter what order you add numbers in, the sum is still the same.
If there is parenthesis, then perform the operation in the parenthesis first.
Example:
4+6+3=____
4 + 6 = 10
10 + 3 = 13
Answer: 13
Example:
5+(1+8)=____
1 + 8 = 9
5 + 9 = 13
Answer: 14
Directions:
Find the sum of three numbers and choose the correct answer. Also write at least ten examples of your own.
Q 1
: 5+9+1=____
16
14
15
19
Q 2
: (6+5)+4=____
14
12
15
16
Q 3
: 3+(4+5)=____
7
12
9
10
Q 4
: 6+(9+6)=____
16
21
12
15
Q 5
: (5+7)+2=____
14
7
9
12
Q 6
: (6+4)+1=____
5
7
10
11
Q 7
: (6+3)+4=____
13
4
9
8
Q 8
: 5+(7+1)=____
6
8
12
13
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Question 10: This question is available to subscribers only!
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