Question

17.85+15.17-120

Answer 1

\(17.85+15.17-120\)

\(=17.\left(85+15\right)-120\)

\(=17.100-120\)

\(=1700-120\)

\(=1580\)

Answer 2

\(17.85+15.17-120=17.(85+15)-120)=17.100-120=1700-120=1580\)