62+48=
2.3+5.7=
12.2﹣0.5=
140×0.3=
401﹣198=
3600÷12=
+ =
﹣ =
×240=
÷ =
25%×5.6÷ =
88+8.8= 90÷5= 0.1÷0.2= 0.12×0.8= 0.3²=
÷10= ×0.25= - = + = ×7÷ ×7=
341-29= 5.7+1.24= -0.25= × =
3.2÷80%= ÷ = ×0+ = 12.5×8÷12.5×8=
分数
小数