19) 4 x 9 -3 x 8 +2 x 8 =

20)5 x 7+3 x 5 – 5x10 =

21) ( 6 + 5 ) x 9 =

22) 9 x ( 7 + 3) =

23) 35 : (15 -10) =

24)(32 – 4 ) : 7 =

25) 17 x ( 5 – 2 ) =

26) (6 + 8) x (10 – 5) =

27) (32 –10) x (20 –15) =

28) (9 x 6) : ( 3 x 9) =

29) (6 +9) x (32 : 4) =

30) (11 – 4) x ( 45: 9) =

31) 50- [( 6 x 8) : ( 12 + 4 )] =

32) 38 +[ 7 x ( 6 + 3) – (17 x 3)] =

33)3 x [5 + (42 : 3 – 9 )] =

34)120 : [ 3 x 15 +( 2 x 7 + 1) =

35) [ 16 + ( 2 +(5 x 3) – (21 :7 +10)=