问题 解答题
6.33×101-6.3317.68÷5.2+2.7×1.535.6-5×1.73
(1.1-0.78)×(2.7-1.95)21÷0.25÷0.43.5×0.7+5.5×0.7+0.7.
答案

(1)6.33×101-6.33,

=6.33×(101-1),

=6.33×100,

=633;

(2)17.68÷5.2+2.7×1.5,

=3.4+4.05,

=7.45;

(3)35.6-5×1.73,

=35.6-8.65,

=26.95;

(4)(1.1-0.78)×(2.7-1.95),

=0.32×0.75,

=0.24;

(5)21÷0.25÷0.4,

=21÷(0.25×0.4),

=21÷0.1,

=210;

(6)3.5×0.7+5.5×0.7+0.7,

=(3.5+5.5+1)×0.7,

=10×0.7,

=7.

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