5.3×75%+3.7×3/4–0.75简算？
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5.3×75%+3.7×3/4–0.75
=5.3×0.75+3.7×0.75–0.75
=(5.3+3.7-1)x0.75
=8x0.75
=6
=5.3×0.75+3.7×0.75–0.75
=(5.3+3.7-1)x0.75
=8x0.75
=6
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