试题与答案

脱式计算.300-(125+25×4)164+36×(12+6)(350+300

题型:解答题

题目:

脱式计算.
300-(125+25×4)

164+36×(12+6)

(350+300)×28÷4

3000-66×24+185.

答案:

(1)300-(125+25×4),

=300-(125+100),

=300-225,

=75;

(2)164+36×(12+6),

=164+36×18,

=164+648,

=812;

(3)(350+300)×28÷4,

=650×28÷4,

=18200÷4,

=4550;

(4)3000-66×24+185,

=3000-1584+185,

=1416+185,

=1601.

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