问题 解答题
计算下面各题,能简算的要简单计算.
(1)135÷27+12×4(2)1620-1320÷60×70(3)520÷[13×(43-39)]
(4)(841-41)÷25×4(5)[160-(75+38)]×107(6)125×(8+4)×25.
答案

(1)135÷27+12×4

=5+48

=53;

(2)1620-1320÷60×70

=1620-22×70

=1620-1540

=80;

(3)520÷[13×(43-39)]

=520÷[13×4]

=520÷52

=10;

(4)(841-41)÷25×4

=800÷25×4

=32×4

=128;

(5)[160-(75+38)]×107

=[160-113]×107

=47×107

=5029;

(6)125×(8+4)×25

=125×8×25+125×4×25

=25000+12500

=37500.

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