1.29×0.91.29 4.9×14.9 3.27×1.13.27
5.9×0.995.9 1×6.46.4 1.03×0.760.76
504×1.25= 63÷504=
50.4×12.5= 63÷12.5=
43.4÷31=
29.7÷11=
39.6÷12=
7.28÷13=
63÷15=
21.28÷7=
①3.54×0.48 =
②★0.79×2.03 =
③0.028×1.7≈(得数精确到百分位)
④★4.92÷12=
购买本数
1~30
31~100
100以上
每本售价/元
401班26人,402班32人,403班47人。
1-0.92= - = ×3.2= ÷ ×5=
3.5+4.28= × = ÷ = 99×0.9+0.9=