递等式计算.36+61.2/12 (20-1.4/2)*0.4 54/(3.94+6.86)*0.8

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递等式计算.36+61.2/12 (20-1.4/2)*0.4 54/(3.94+6.86)*0.8
递等式计算.36+61.2/12 (20-1.4/2)*0.4 54/(3.94+6.86)*0.8

递等式计算.36+61.2/12 (20-1.4/2)*0.4 54/(3.94+6.86)*0.8
36+61.2/12
=36+5.1
=40.1
(20-1.4/2)*0.4
=(20-0.7)*0.4
=20*0.4-0.7*0.4
=8-0.28
=7.72
54/(3.94+6.86)*0.8
=54/10*0.8
=5.4*0.8
=4.32