问题 解答题

递等式计算

(35.55)×15

8×7×125

5.3+43.6+38.7

(59+187)÷3.

答案

(1)(35+55)×15,

=90×15,

=1350;

(2)8×7×125,

=(8×125)×7,

=1000×7,

=7000;

(3)5.3+43.6+38.7,

=(5.3+38.7)+43.6,

=44+43.6,

=87.6;

(4)(59+187)÷3,

=246÷3,

=82.

单项选择题
单项选择题