Question

Answer 1

\(1,=\left(-359+350\right)+\left(181-172\right)-123=-9+9-123=-123\\ 2,=\left(1152-1152\right)+\left(-374+374\right)-65=0+0-65=-65\\ 3,=\left(-25\right)\left(63-23\right)=\left(-25\right)\cdot40=-1000\\ 4,=\left(-26\right)\left(237-137\right)=\left(-26\right)\cdot10=-2600\\ 5,=-525-475-245+45=-1200\)

Answer 2

-359+181+(-123)+350+(-172)=(-654)+531=(-123)
1152-(374+1152)+(-65+374)=(-374)+309=(-65)
63.(-25)+25.(-23)=25.(-63+-23)=(-2150)
26.(-237+137)=26.(-100)=(-2600)
(-525)-\([\left(475+245\right)-45]\)=(-525)-675=(-1200)