问题 解答题

用你喜欢的方法计算:

70.8-1.25-1.75

1.25×8.8

0.36×101-0.36.

答案

(1)70.8-1.25-1.75,

=70.8-(1.25+1.75),

=70.8-3,

=67.8;

(2)1.25×8.8,

=1.25×(8+0.8),

=1.25×8+1.25×0.8,

=10+1,

=11;

(3)0.36×101-0.36,

=0.36×(101-1),

=0.36×100,

=36.

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