number-bonds/addition-bonds/expert · 套题 82
8 problems
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1
Number bond: 3 2 + ?
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2
Complete the number bond: 7 __ + 6
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3
Complete the number bond: 8 4 + __
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4
6 5 + __
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5
Complete the number bond: 6 4 + __
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6
10 8 + __
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7
9 __ + 8
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8
3 __ + 2
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