12 x 8 - 6

(a)  

42 - 9 x 4

(a)  

21 + 3 x 7

(a)  

35 ÷ 7 + 12

(a)  

8 - 4 ÷ 2

(a)  

20 + ( 6 x 8 ) =

(a)  

73 - ( 64 ÷ 8 ) =

(a)  

( 3 x 9 ) - ( 72 ÷ 12 ) =

(a)  

( 11 - 5 ) x ( 3 + 7 ) =

(a)