45+27:3-12=? 90-36:3•2=? 84:4•3+2=?

Question

45+27:3-12=? 90-36:3•2=?
84:4•3+2=?

Answer 1

45+27:3-12=42
90-36:3*2=66
84:4*3+2=65

Answer 2

45+27:3=54 90-36:3•2=76 84:4•3+2=65