number-bonds/addition-bonds/expert · 套题 27
8 problems
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1
Number bond: 6 + 5
=
2
4 __ + 3
=
3
Number bond: 2 1 + ?
=
4
Complete the number bond: 6 5 + __
=
5
10 5 + __
=
6
Number bond: 3 + 2
=
7
Number bond: 9 6 + ?
=
8
6 __ + 2
=