Question

(35+75)+(345-35-75)

​23.75-130-(20-25.23) Nhanh lên nhé

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Answer 1

35+75+345-35-75

=(35-35)+(75-75)+345

=0+0+345

=345

23.75-130-20+25.23

=23.(75+25)-130-20

=23.100-130-20

=2300-130-20

=2150

Answer 2

1) (35 + 75) + (345 - 35 - 75)

= (35 - 35) + (75 - 75) + 345

= 0 + 0 + 345

= 345

2) 23 . 75 - 130 - ( 20 - 25 . 23)

= 23 . 75 - 130 - ( 20 - 575)

= 23 . 75 - 130 - (-555)

= 1725 - 130 - (-555)

= 1595 - (-555)

= 2150.

Chúc bạn học tốt!