Question

/-28/+(129-182+99)-(129+199-182)

Answer 1

\(\left|-28\right|+\left(129-182+99\right)-\left(129+199-182\right)\\ =28+129-182+99-129-199+182\\ =28+\left(129-129\right)+\left(182-182\right)+\left(99-199\right)\\ =28-100=-72\)

Answer 2

Ta có:

Answer 3

\(|-28|+\left(129-182+99\right)-\left(129+199-182\right)\)

\(=28+129-182+99-129-199+182\)

\(=28+\left(129-129\right)+\left(182-182\right)+\left(99-199\right)\)

\(=28-100\)

\(=-72\)