(45:5+72):7:3=

38-2x4=

23+6x5=

5x6+52=

9x9-6x6=

6x6:6+6=

2x2x3=

72x3x16-(700+35:5)=

50x2+25x4+(309-200-8x7)=.

736-(9x9+5x6-3x8)=​