number-bonds/addition-bonds/hard · セット 88

7 problems
1
Number bond: 9 + 2 =
2
6 4 + __ =
3
Number bond: 2 1 + ? =
4
Complete the number bond: 5 1 + __ =
5
Complete the number bond: 4 3 + __ =
6
5 __ + 2 =
7
Complete the number bond: 2 1 + __ =
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