1. а)1.6×(-4.5)=
б)-135.2÷(-6.5)=
в)-1 1/14×(-2 1/3)=
г)1 1/7÷(-2 2/7)=
2. (-9.18÷3.4-3.7)×2.1+2.04=
3. 3/7×(-0.54)-1.56×3/7=
4. (6х-9)×(4х+0.4)=0