Order of Operations Review

 $40-32\div8+5\cdot-2$  

 $\left(4-7\right)^2-6\cdot7+20$  

 $\left[\left(-5+1\right)\div2\right]^3-\left|-7\right|$  

 $\frac{6\left(2+4\right)-1}{2\cdot3+1}$  

 $\frac{17\cdot5-3\cdot5}{3^2+1}$  

 $-\left|-16\right|\div\frac{\left(3^2-4\right)}{5-10}$