number-bonds/addition-bonds/easy · 套题 100
7 problems
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1
4 __ + 2
=
2
9 __ + 7
=
3
Complete the number bond: 4 __ + 2
=
4
10 9 + __
=
5
Complete the number bond: 7 __ + 6
=
6
4 __ + 1
=
7
Complete the number bond: 5 3 + __
=