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脱式计算能简便的渐变6.8乘0.75/0.5 13.75/0.125-2.75 1.53+23.4/7.2 2.85/1

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脱式计算能简便的渐变6.8乘0.75/0.5 13.75/0.125-2.75 1.53+23.4/7.2 2.85/1.25/0.8 10.5*0.25*12
脱式计算能简便的渐变6.8乘0.75/0.5 13.75/0.125-2.75 1.53+23.4/7.2 2.85/1
6.8乘0.75/0.5
=6.8×(0.75×2)
=6.8×1.5
=10.2
13.75/0.125-2.75
=13.75×8-2.75
=110-2.75
=107.25
1.53+23.4/7.2
=1.53+23.4÷9÷0.8
=1.53+2.6÷0.8
=1.53+3.25
=4.78
2.85/1.25/0.8
=2.85÷(1.25×0.8)
=2.85
10.5*0.25*12
=10.5×(12÷4)
=10.5×3
=31.5