3.48+6.2=
4.9÷0.7=
2.4×5=
8﹣ =
+ =
12× =
310×4=
0÷ =
÷ =
× =
123﹣57=
43=
210÷7= 12.25-0.5= -0.5= 0.77+123%=
25×0.4= - = × = + =
300-79= 0.4×0.8= 1+0.05= 7.26+2.64=
= 1.25×32= ×25%= =