3 x 8 - 21

( 54 - 50 ) x 4

5 x 7 - 8

31 + 1 x 1

21 + 9 x 2

2 x ( 5 - 4 )

1 x 7 - 5

1 x 6 - 5

80 - 8 x 8

9 x 6 - 4

4 x ( 46 - 45 )

( 38 - 32 ) x 3

( 49 - 45 ) x 1

( 3 + 2 ) x 5

( 55 - 49 ) x 5

( 5 + 3 ) x 8

4 x ( 17 - 10 )

88 - 1 x 7

( 5 - 4 ) x 4

( 1 + 3 ) x 8

( 31 - 29 ) x 9

9 + 8 x 8

5 x ( 45 - 39 )

79 - 3 x 1

( 7 + 1 ) x 8