number-bonds/addition-bonds/hard · 套题 45
8 problems
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1
Complete the number bond: 3 2 + __
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2
Number bond: 10 + 6
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3
8 2 + __
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4
Number bond: 10 9 + ?
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5
Complete the number bond: 2 1 + __
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6
Complete the number bond: 2 __ + 1
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7
6 __ + 3
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8
Number bond: 10 1 + ?
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