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Adding and taking away within 20, and how the two undo each other.

Grade 110 questions
1

7 + 5 = ?

11121314
2

9 + 8 = ?

16171819
3

6 + 6 = ?

4

14 + 3 is greater than 16.

TrueFalse
5

15 - 7 = ?

6

Which addition helps you work out 13 - 5?

5 + 8 = 1313 + 5 = 185 + 5 = 108 - 5 = 3
7

8 + __ = 16

8

You have 18 stickers and give away 6. How many are left?

10111213
9

If 9 + 4 = 13, then 13 - 4 = 9.

TrueFalse
10

There are 7 red counters and 9 blue ones. How many altogether?

0 of 10 answered