34.5÷0.6=÷6
6.84÷7.2=÷72
19.76÷5.2=÷52
0.621÷0.03=÷3
5.5+4.5= 6.2-5= × = 2.4÷0.2=
+ = 3×20= ÷ = 0.44×5=