number-bonds/addition-bonds/medium · 套题 33
8 problems
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1
Number bond: 3 1 + ?
=
2
Number bond: 10 5 + ?
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3
4 1 + __
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4
Complete the number bond: 6 __ + 2
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5
8 2 + __
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6
Complete the number bond: 2 __ + 1
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7
9 __ + 2
=
8
10 8 + __
=