5﹣2=
3﹣2=
3+2=
2﹣1=
4﹣3=
5﹣1=
2+2=
3+1=
5﹣3=
4+1=
4﹣1=
2+1=
16=7 95=4 63=9 55=0
3+26 88-1 515-10
9-65 13-212 4+34+2
﹣5,+3,﹣3.5,0.75,﹣
① -( - )-
②875-375÷25
③12.5×32×0.25
④48×75%+53× -0.75
⑤