8.4÷0.6+8.4÷0.4(1+1÷1.6)+(2+5÷1.6)+(3+10÷1.6)-数学

题目简介

8.4÷0.6+8.4÷0.4(1+1÷1.6)+(2+5÷1.6)+(3+10÷1.6)-数学

题目详情

8.4÷0.6+8.4÷0.4
(1+1÷1.6)+(2+5÷1.6)+(3+10÷1.6)
题型:解答题难度:中档来源:不详

答案

(1)8.4÷0.6+8.4÷0.4,
=14+21,
=35;

(2)(1+1÷1.6)+(2+5÷1.6)+(3+10÷1.6),
=(1+0.625)+(2+3.125)+(3+6.25),
=(1+2+3)+(0.625+3.125+6.25),
=6+(3.75+6.25),
=6+10,
=16.

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