3+2 2× (- 1/5) solution: original formula = 3+4× (-1/5) = 3-4/5 =11/518-6 \. =18-1=17 (-3) 2× [-2/3+(-5/9)] Solution: Original formula = 9× (-11/9). 8 =-65438+3) solution: original formula =100 ÷ 4-3 = 25-3 = 22 36× (1/2-1/3) 2 solution: original formula = 36× (/) 36) =112.7 ÷ (-8/19) × 0 solution: original formula = 0.4× (-3) 2+6 solution: original formula = 4× 9+6 = 36+6 = 42 (. 3÷(-654388 solution: the original formula = 0-8 ÷ (-64)-1/8 = 0+1/8-1/8 = 0 (-2) 3× 0.5-(. 5) 2 ÷ 4 = (-4)-(64/25) ÷ 4 = (-4)-16/25 =-16/25 (-3/2) × [

This is all I found. There are no 40 tracks. I hope you are satisfied! ! !