number-bonds/addition-bonds/hard · セット 71
8 problems
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日付：
1
Complete the number bond: 5 __ + 1
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2
Number bond: 8 6 + ?
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3
Number bond: 4 1 + ?
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4
Complete the number bond: 7 6 + __
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5
Number bond: 8 + 4
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6
Complete the number bond: 3 __ + 2
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7
Number bond: 9 4 + ?
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8
Number bond: 8 5 + ?
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