4×8= 48÷6= 3×9= 72÷8=
2×8= 6×6= 54÷9= 7×7=
15÷3= 56÷8= 9×2= 42÷6=
4×4+4= 6×9-6= 5×4+5= 4×8-8=
12+18-9= 50+31+11= 90-20-8= 76-22+22=
6×5=
4×1=
5×4+30=
99-14=
16+80=
3×6-8=
2×3=
4×6-4=
74-(80-6)=
2×6= 5+5+5= 9×3= 4×4= 36﹣20+14=
5×8= 8×2= 4×7= 35+40= 55+15﹣30=
① -( - )-
②875-375÷25
③12.5×32×0.25
④48×75%+53× -0.75
⑤