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(34×38-34×18)÷93254-13×95-25730×35÷730×253-89÷

2022-08-14 02:50:08 问答库 阅读 200 次

问题详情

(3

4

×3

8

-3

4

×1

8

)÷9

32

5

4

-1

3

×9

5

-2

5

7

30

×3

5

÷7

30

×2

5

3-8

9

÷5

6

×3

16

(1-1

4

×8

9

)÷7

9

12÷[(7

9

-2

3

)×9

10

]

[1

4

+(1

6

+2

3

)]×2

3

3

4

×[1÷(5

6

+3

4

)]

(1-1

7

)×(1

16

×14

3

)

参考答案

(1)(34×38-34×18)÷932
=34×(38-18)÷932
=34×14×329
=23;

(2)54-13×95-25
=54-35-25
=54-(35+25)
=54-1
=14;

(3)730×35÷730×25
=730÷730×25×35
=625;

(4)3-89÷56×316
=3-89×65×316
=3-15
=245;(5)(1-14×89)÷79=(1-29)÷79=79÷79
=1;

(6)12÷[(79-23)×910]=12÷[19×910]=12÷110
=120;

(7)[14+(16+23)]×23
=[14+56]×23
=1312×23
=1318;

(8)34×[1÷(56+34)]
=34×[1÷1912]
=34×1219
=919;

(9)(1-17)×(116×143)
=67×724
=14.

考点: