×= ×18= ÷5= ()2= 14÷=
0.25×8= 20×10%= += 6--= (-)×15=
-=
÷=
+=
2×=
×=
1÷-÷1= ×= 40%:08= 8÷×= 12×(-)=
0.37+1.8=
0.25×8=
5.1÷0.3=
1-7÷7=
1.25×4×8=
6.2-2.15
×= ÷= 1÷20%= 1.25×8=
0÷= 8÷= ×2.8= ÷0.4=