number-bonds/to-50/medium · 套题 18
7 problems
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1
8 __ + 4
=
2
Complete the number bond: 2 1 + __
=
3
Number bond: 6 + 4
=
4
Complete the number bond: 10 __ + 3
=
5
Number bond: 10 2 + ?
=
6
Number bond: 6 5 + ?
=
7
5 __ + 3
=