Question

gải chi tiết nha cảm ơn pà doraemon nhiều nha

Answer 1

`6)(-135)+79+(-65)-179`

`=[(-135)+(-65)]+(79-179)`

`=(-200)+(-100)=-300`

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`7)55.(-19)+55.(-81)`

`=55.[(-19)+(-81)]`

`=55.(-100)=-5500`

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`8)145.(-21)+145.(-79)`

`=145.[(-21)+(-79)]`

`=145.(-100)=-14500`

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`9)(-42).111+(-42).(-11)`

`=(-42).[111+(-11)]`

`=-42.100=-4200`

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`10)(-51).138+(-51).(-38)`

`=(-51).[138+(-38)]`

`=(-51).100=-5100`

Answer 2

6) = [(- 135) + ( - 65)] + ( 79 - 179)

= (- 200) + (- 100) 

= - 300

7) = 55 . [( - 19) + (- 81)]

= 55 . ( - 100)

= -5500

8) = 145 . [( -21) + ( -79)

= 145 . ( -100)

= - 14500

Answer 3

9) = (- 42) . 111 + ( - 42) . (- 11)

= - 42 . 100

= - 4200

10) = (- 51) . [138 + (- 38)]

= - 51 . 100

= - 5100