问题 解答题
用简便方法计算.
201×2437×99+37125×(7×8)25×7×5×4.
答案

(1)201×24,

=(200+1)×24,

=200×24+24,

=2400+24,

=2424;

(2)37×99+37,

=37×(99+1),

=37×100,

=3700;

(3)125×(7×8),

=125×8×7,

=1000×7,

=7000;

(4)25×7×5×4,

=25×4×(7×5),

=100×35,

=3500.

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