3÷= -= 9.9%÷0.1= ×4÷4×=
2.4×= += 1-25%= (-)×16=
0.12:0.3
0.5km:2m
2.64+3.6=
2.4×50=
2+7÷9=
0.3÷3%=
8×12.5%= 0.07÷0.7= ÷0.25= ×=
-= +20%= 0.18×5= ÷×=
2.4×5= ÷= 4.8×= ÷3×=
25÷25%= ÷= 35÷= ×÷×=
8.4-5.6= 1.25×0.08= ÷8=
4÷0.2= 50×4%= 7× ÷7× =