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7/8×3/4×1000×124/125=
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7/8 × 3/4 × 1000 × 124/125 =
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答案和解析
7/8 × 3/4 × 1000 × 124/125
=(7/8×124/125×1000)×3/4
=(868/1000×1000)×3/4
=868×3/4
=651
=(7/8×124/125×1000)×3/4
=(868/1000×1000)×3/4
=868×3/4
=651
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