100-75+29=
55+37-28=
66-47+38=
23+19+46= 80-16-35=
63-29+17= 37+18-19=
3×5=3×□+3
①24+49+13=
②54-18+21 =
改正:
12÷
6=
4=
3=
36÷
=9
=6
=4
24÷
=8
=3
14-8=
16-7=
3.5+2.5= 10﹣0.35= 0.56÷0.7= 20%×5%= 12:2.4=
25×0.8= 9﹣2= 3.75+1= 0÷18= :=