问题 解答题
计算下面各题,能简便的用简便方法计算
(241-41)÷25×483×29+71×83199+199×99
560÷[490÷(34+36)]101×99208×37-8×37.
答案

(1)(241-41)÷25×4,

=200÷25×4,

=8×4,

=32;

(2)83×29+71×83,

=83×(29+71),

=83×100,

=8300;

(3)199+199×99,

=199×(1+99),

=199×100,

=19900;

(4)560÷[490÷(34+36)],

=560÷[490÷70],

=560÷7,

=80;

(5)101×99,

=(100+1)×99,

=100×99+1×99,

=9900+99,

=9999;

(6)208×37-8×37,

=(208-8)×37,

=200×37,

=7400.

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