Name:__________________ Fill in the missing addend to make the equation equal on both sides. |
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1, 2 + 5 = 4 + | 2, + 1 = 4 + 2 |
3, 3 + = 4 + 4 | 4, + 3 = 1 + 8 |
5, 2 + 2 = + 3 | 6, 2 + 5 = 3 + |
7, + 6 = 1 + 8 | 8, 2 + = 4 + 4 |
9, + 1 = 3 + 6 | 10, + 5 = 2 + 7 |
11, 0 + = 3 + 6 | 12, 2 + 5 = + 7 |