问题 解答题
用递等式计算.
25×24+125
23×34-152
(21-19)×38320+26×27
1500-125×820×(35-14)
答案

(1)25×24+125

=600+125

=725;

(2)23×34-152

=782-152

=630;

(3)(21-19)×38

=2×38

=76;

(4)320+26×27

=320+702

=1022;

(5)1500-125×8

=1500-1000

=500;

(6)20×(35-14)

=20×21

=420.

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