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能简算的要简算.35+710+2578-(38+25)2-1519-41978+16-112

2022-08-14 00:37:09 问答库 阅读 200 次

问题详情

能简算的要简算.
3

5

+7

10

+2

5


7

8

-(3

8

+2

5

)

2-15

19

-4

19


7

8

+1

6

-11

24


5

8

+9

17

+3

8

+8

17


13

7

-5

12

-7

12


3-(1

7


5

9

+2

3

-15

18


4

5

-(7

15

-4

9

)

6

11

+11

15

+5

11

-6

15

参考答案

(1)35+710+25
=35+25+710
=1+710
=1710

(2)78-(38+25)
=78-38-25
=12-25
=110

(3)2-1519-419
=2-(1519+419),
=2-1,
=1;

(4)78+16-1124
=2524-1124
=712

(5)58+917+38+817
=(58+38)+(917+817),
=1+1,
=2;

(6)137-512-712
=137-(512+712),
=137-1,
=37

(7)3-(17
=3-156
=25556

(8)59+23-1518
=119-1518
=718

(9)45-(715-49)
=45-715+49
=13+49
=79

(10)611+1115+511-615
=(611+511)+(1115-615),
=1+13
=113

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