明明班有25名女生,20名男生.任意挑选一人,选到明明的可能性是几分之几?
32= 0.2×0.4= 6÷0.6= 0.12= 0.81÷0.9= 1.52= .
口算0.6×5= 300×6= 1.2÷3= 80﹣23=3.2×3=19×4= 0.07×6= 100÷4= 4.5÷3=
7.89×4.27 28.56÷5.1 102.6÷3.8.
0.9×0.08= 6+14.4= 24÷0.04= 3.2×7÷3.2×7=0÷3.8= 0.77+0.33= 7÷1.4= 187.7×11﹣187.7=7.2÷8×4= 400÷125÷8= = ()×12=1﹣= 2.34﹣2.3= 1.9×4×0.5= 67.5+0.25=
直接写出得数.0.37+0.73= 1.4﹣0.5= 0.3×0.04= 8÷0.01=2.29÷229= 23.8﹣6.9﹣3.1= 0.6÷0.25= 0.9×2.5=