问题 解答题
用简便方法计算.
36×25102×2435×16×125137×15-15×37.
答案

(1)36×25,

=9×4×25,

=9×(4×25),

=9×100,

=900;

(2)102×24,

=(100+2)×24,

=100×24+2×24,

=2400+48,

=2448;

(3)35×16×125,

=35×2×8×125,

=(35×2)×(8×125),

=70×1000,

=70000;

(4)137×15-15×37,

=15×(137-37),

=15×100,

=1500.

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