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数学脱式计算题
6.72×2/3+1又1/4×0.8(准确的过程)
1.875×(3/4+7/12)÷12.5(准确的过程)
人气:281 ℃ 时间:2020-05-13 06:45:31
解答
6.72×2/3+5/4×0.8
=2.24×2+5/4×4/5
=4.48+1
=5.48
1.875×(3/4+7/12)÷12.5
=1.875×4/3×2/25
=0.625×4×2/25
=2.5×2/25
=2/10
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