Addition Quiz 1

The addition of two positive integers. It is very straight forward, total.

published on March 12, 201622 responses 0
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1/5

4 + 8 =

4
12
2
16
2/5

7 + 3 =

21
4
10
5
3/5

11 + 5 =

6
2
17
16
4/5

2 + 9 =

12
7
11
18
5/5

5+ 22

17
27
4
30