Addition and Subtraction Check

6 + 1 = 7
5 + 1 = 6
3 + 1 = 4
1 + 1 = 2
2 + 1 = 3
8 + 1 = 9
10 + 1 = 11
9 + 1 = 10
4 + 1 = 5
7 + 1 = 8
Tests to test the knowledge of addition and subtraction in the range of 10, 20 and 100
You are asked 10 questions for addition and subtraction in a scatter without answers. The questions are not repeated

Addition within 20

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