8*4 + (25-17) = 82-21:7+11 = (13-8) * 6:10=

42: (31-8*3) =

(90:10-4) * 7=

72: (40-32) * 6=

81:81*9+37=

(39-39) * 100+36:6=

(6*10-48) : 2=

1. 40

2.90

3.3

4.6

5.35

6.46

7.106

8. 6

8*4 + (25-17) = 32+8=40

(13-8) * 6:10 = 5*6:10=30:10=3

42: (31-8*3) = 42: (31-24) = 42: (7) = 6

(90:10-4) * 7 = (9-4) * 7=35

72: (40-32) * 6=72: (8) * 6=54

81:81*9+37=46

(39-39) * 100+36:6=6

(6*10-48) : 2=6