问题 解答题
计算下面各题,怎样简便就怎样算.
(125+7)×8
3.27+6.4+2.73+4.6124×5+169÷13
25×446.45-0.58-1.4212×(324-285)÷26.
答案

(1)(125+7)×8,

=125×8+7×8,

=1000+56,

=1056;

(2)3.27+6.4+2.73+4.6,

=(3.27+2.73)+(6.4+4.6),

=6+11,

=17;

(3)124×5+169÷13,

=620+13,

=633;

(4)25×44,

=25×4×11,

=100×11,

=1100;

(5)6.45-0.58-1.42,

=6.45-(0.58+1.42),

=6.45-2,

=4.45;

(6)12×(324-285)÷26,

=12×39÷26,

=468÷26,

=18.

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