Question

(0.75 - 0.8) * 7.8 + (0.7 + 0.6) * 0.5

Answer 1

0,75*7,8-0,8*7,8+0,7*0,5+0,6*0,5=5,85-6,24+0,35+0,3=0,26

Answer 2

(0,75-0,8)*7,8+(0,7+0,6)*0,5=-0,05*7,8+1,3*0,5=-0,39+0,65=0,26