Question

Bài 1:

a) -275-50-25

b) (-9)^2.{-35-[-11+(-72):8]:(-2^2)}

Answer 1

a) -275-50-25

= [(-275)- 25]-50

= -300 -50

-350

b) (-9)².{-35-[-11+(-72):8]:(-2²)}

= 81.{-35-[-11-9]:4}

= 81.{-35+20:4}

= 81.{-35+5}

= 81. (-30)

= -2430

Answer 2

a) -275-50-25

\(=-275-25-50\)

\(=-300-50\)

\(=-350\)

câu b để mk xem lại nha

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