=9.8×(5.5+4.4+10)=9.8×19.9=9.8×(20-0.1)=19.6-0.98=19.6-1+0.02=18.6+0.02=18.62
9.8 x 5.5 + 9.8 x 4.4 +98=9.8 x (5.5 + 4.4 +10)=9.8 x 19.9=9.8 x (20-0.1)=196 - 0.98=195.02