A． | B． | C． |
A． 千克 | B．10%千克 | C．2千克 | D． 千克 |
米= 厘米
时= 分
是27；48的
是 ．  ×0= |  × = |  ×12= |  × = |
 × = |  ÷ = | 9× = |  ÷ = |
18× = |  ÷ = |  ÷ = |  × = |
× =÷ =1
× =0.2× =1． 
÷
÷24 
×
×
×
．  ×15= | 35× = |  × = | ×7+×11= |
12÷ = | ÷ = |  × ÷ = | 2.4× = |
 × ÷×= | 0× + = | | |
，完成任务他需要 ． 
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