39 ÷ 9 + 4
10 + 8 ÷ 2 - 6
20 - 2 4 - 1 × 3
6 + 8 ÷ 2 + 2 3 - 1
( 5 - 1 ) 3 ÷ 4
8 + 5 - 2
14 - 2 × 6 + 9
25 ÷ 9 - 4