Question

tính hợp lý

-16+24+16-34

25+37-2576-29

2575+37-48-25-37

34+35+36+37-14-15-16-17

mk cần gấp

trả lời nhanh kb lun

 

 

Answer 1

-16 + 24 + 16 - 34 = ( -16 + 16 ) + ( 24 - 34 ) = 0 + ( -10 ) = -10

Answer 2

- 16 + 24 + 16 - 34

= (-16 + 16) + (24  - 34)

= 0 + - 10

= - 10

25 + 37 - 2576 - 29

= 25 + (37 - 29) - 2576

= 25 + 8 - 2576

= 33 - 2576

= - 2543

2575 + 34 - 48 - 25 - 37

= (2575 - 25) + (34 - 37) - 48 

= 2550 - 3 - 48

= 2550 - (3 + 48)

= 2550 - 51

= 2499

34 + 35 +  36 + 37 - 14 - 15 - 16 - 17

= (34 - 14) + (35 - 15) + (36 - 16) + (37 - 17)

= 20 + 20 + 20 + 20

= 20 x 4

= 80

Answer 3

Trả lời:

\(\left(-16\right)+24+16-34=-10.\)

\(25+37-2576-29=-2543\)

\(2575+37-48-25-37=2576\)

\(34+35+36+37-14-15-16-17=80\)