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用递等式计算.(怎样算简便就怎样算)5020-2940÷28×3756×0.25+14×16

2022-08-14 02:30:03 问答库 阅读 200 次

问题详情

用递等式计算.(怎样算简便就怎样算)
5020-2940÷28×37

5

6

×0.25+1

4

×1

6

3×(7

12

+5

9

-1

4

)

7

2

÷(7

6

-2

3

)×31-1

8

×(0.32+8

5

)(0.25+7

12

)+(14

15

-2

3

)

参考答案

(1)5020-2940÷28×37,
=5020-105×37,
=5020-3885,
=1135;

(2)56×0.25+14×16,
=14×(56+16),
=14×1,
=14;

(3)3×(712+59-14),
=3×(4136-14),
=3×3236,
=223;

(4)72÷(76-23)×3,
=72÷12×3,
=7×3,
=21;

(5)1-18×(0.32+85),
=1-18×1.92,
=1-0.24,
=0.76;

(6)(0.25+712)+(1415-23),
=1012+415,
=1.1.

考点:等式