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Grade 2 - Mathematics
1.22 Addition of Three One Digit Numbers

Method:
  1. First add two numbers.
  2. Add the third number to the sum of first two.
  3. It does not matter what order you add numbers in, the sum is still the same.
  4. 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: 6+(9+6)=____
21
16
15
12

Q 2: 3+(4+5)=____
10
9
12
7

Q 3: (6+5)+4=____
16
12
15
14

Q 4: 8+9+1=____
9
11
17
18

Q 5: 6+2+8=____
10
16
8
14

Q 6: 5+(7+1)=____
12
8
13
6

Q 7: (6+3)+4=____
13
4
8
9

Q 8: 3+(2+8)=____
13
9
5
10

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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