( 1,8 : 0,15 )2 + 12,13 - 20,4 * 6,9 =

Question

( 1,8 : 0,15 )2 + 12,13 - 20,4 * 6,9 =

Answer 1

1)18:1,5=12
2)12*2=24
3)20,4*6,9=140,76
4)24+12,13=36,13
5)36,13-140,76=-(140,76-36,13)=-104,63

Answer 2

1,8 ; 0, 15 = 180 ;15 = 12
12 x 2 = 24
20, 4 x 6,9 = 140,76
24 + 12,13=36,13
36,13 - 140,76 = -104,63

Comments

12x 2 = 24  24 + 12,13 = 36,13  -140,76 + 36,13 = - 104,63