
1.2x2.8×0.5÷4.8
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2020-10-19 · 知道合伙人教育行家
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1.2x2.8×0.5÷4.8
=1.2x4×0.7×0.5÷4.8
=4.8×0.7×0.5÷4.8
=(4.8÷4.8)×(0.7×0.5)
=1×0.35
=0.35
=1.2x4×0.7×0.5÷4.8
=4.8×0.7×0.5÷4.8
=(4.8÷4.8)×(0.7×0.5)
=1×0.35
=0.35
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