1) 3,12:0,6+24:0,75-8:25+28:0,35=

2) (56,42:1,4-1,536:0,32) * 2,1-6,8=

3) 120 - (7,0056:0,072+14,62) =

4) (4*1,125-4,5) * 6,84 + (3,54+1,824) : 0,76=

3,12 / 0,6 + 24 / 0,75 - 8 / 25 + 28 / 0,35 = 116,88

3,12/0,6=5,2

24/0,75=32

8/25=0,32

28/0,35=80

5,2+32=37,2

37,2-0,32=36,88

36,88+80=116,88

(56,42 / 1,4 - 1,536 / 0,32) * 2,1 - 6,8 = 67,75

56,42/1,4=40,3

1,536/0,32=4,8

40,3-4,8=35,5

35,5*2,1=74,55

74,55-6,8=67,75

120 - (7,0056 / 0,072 + 14,62) = 8,08

7,0056/0,072=97,3

97,3+14,62=111,92

120-111,92=8,08

(4 * 1,125 - 4,5) * 6,84 + (3,54 + 1,824) / 0,76 = 7,057894737

4*1,125=4,5

3,54+1,824=5,364

4,5-4,5=0

0*6,84=0

5,364/0,76=7,057894737

0+7,057894737=7,057894737