4.02+5.4+0.98 5. 17- 1.8-3.2 13.75-(3.75+6.48)
3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6- 1.8- 15.6-7.2
3.82+2.9+0. 18+9. 1 9.6+4.8-3.6