
16.8÷(1.32×2-0.4)能简算的要简算
2个回答
2016-06-13
展开全部
16.8÷(1.32×2-0.4)
= (16.8÷0.4)÷(1.32÷0.4×2-0.4÷0.4)
= 42÷(3.3×2-1)
= 42÷(6.6-1)
= 42÷5.6
= (42÷1.4)÷(5.6÷1.4)
= 30÷4
= 7.5
= (16.8÷0.4)÷(1.32÷0.4×2-0.4÷0.4)
= 42÷(3.3×2-1)
= 42÷(6.6-1)
= 42÷5.6
= (42÷1.4)÷(5.6÷1.4)
= 30÷4
= 7.5
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