26×50=
12-0.86=
11-=
0.24÷6=
4÷=
24×(+)=
2.5×3.6×0.4=
96×0.4÷96×0.4=
98.98-(8.98-4.8) 250×+÷ 17.8-20.4×
16-13÷9+×4 ×2.4+6.6×87.5%+1÷ ÷〔(-)×1.2+〕
0.25:=x: 4x-x=2-