问题 解答题

用喜欢的方法计算下面各题.

3.7+3.7×9

8.8×12.5

5.4÷1.25÷8

3.59×0.64+0.36×3.59.

答案

(1)3.7+3.7×9,

=3.7×(1+9),

=3.7×10,

=37;

(2)8.8×12.5,

=(8×1.1)×12.5,

=(8×12.5)×1.1,

=100×1.1,

=110;

(3)5.4÷1.25÷8,

=5.4÷(1.25×8),

=5.4÷10,

=0.54;

(4)3.59×0.64+0.36×3.59,

=3.59×(0.64+0.36),

=3.59×1,

=3.59.

填空题
不定项选择题