问题
解答题
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答案
(20+4)×25=600, | 2100÷30=70, | 108×5=540, | 630÷70=9, |
9600÷800=12, | 60×30=1800, | 14×30=420, | 7×48+7×52=700, |
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(20+4)×25=600, | 2100÷30=70, | 108×5=540, | 630÷70=9, |
9600÷800=12, | 60×30=1800, | 14×30=420, | 7×48+7×52=700, |