问题 解答题
脱式计算:
124×5+159÷3(450-400)÷5+18525×(759-645)-2486.
答案

(1)124×5+159÷3,

=620+53,

=673;

(2)(450-400)÷5+185,

=50÷5+185,

=10+185,

=195;

(3)25×(759-645)-2486,

=25×114-2486,

=2850-2486,

=364;

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