2.2×182.2 10.23×0.9910.23 2.3÷0.32.3
8.4+0.7= 7.3×0.2= 15.3÷3= 0.69÷0.3=
7.8÷0.3= 1.3+0.6= 5.9+4= 0.8×1.2=