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用你喜欢的方法算:可要仔细哟!!(1)43×27+57÷34(2)12-425÷25+14(

2022-08-14 03:04:44 问答库 阅读 200 次

问题详情

用你喜欢的方法算:可要仔细哟!!
(1)4

3

×2

7

+5

7

÷3

4


(2)1

2

-4

25

÷2

5

+1

4


(3)1

4

÷(5

8

+3

8

×8

5

)
(4)(9×2

3

-4)÷4

5


(5)[(4+3

2

)÷2

5

]×5

12


(6)3

11

÷[2

5

+(1-10

11

)].

参考答案

(1)43×27+57÷34,
=43×27+57×43,
=(27+57)×43,
=1×43,
=43;

(2)12-425÷25+14,
=12-25+14,
=110+14,
=720;

(3)14÷(58+38×85),
=14÷(58+35),
=14÷4940,
=1049;

(4)(9×23-4)÷45,
=(6-4)÷45,
=2÷45,
=52;

(5)[(4+32)÷25]×512,
=[112÷25]×512,
=554×512,
=27548;

(6)311÷[25+(1-1011)],
=311÷[25+111],
=311÷2755,
=59.

考点:方法