无
*注意事项:
看图计算。
× = × = × =
×0=
× =
×12=
45× =
9× =
×100=
18× =
×2=
4× =
×3=
40× =
10× =
12× =
36× =
×9=
×70=
﹣ =
×10=
140× =
+ =
20× =
75× =
×25=
20× × ×18 ×
蜂鸟是目前所发现的世界上最小的鸟,也是唯一能倒飞的鸟。蜂鸟每分钟可飞行 千米, 分钟飞行多少千米?5分钟飞行多少千米?
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