问题 解答题

计算下面各题,能简算的要简算.

(16.8+1.47)÷0.7×1.2

3.84×1.25×8

10.5÷[(0.55-0.48)×0.1].

答案

(1)(16.8+1.47)÷0.7×1.2

=18.27÷0.7×1.2

=26.1×1.2

=31.32;

(2)3.84×1.25×8

=3.84×(1.25×8)

=3.84×10

=38.4;

(3)10.5÷[(0.55-0.48)×0.1]

=10.5÷(0.07×0.1)

=10.5÷0.007

=3500.

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