无
*注意事项:
× =
÷ ÷3 ÷1 12÷ 12
×2.8 = - × = ÷ = ÷3= =
120× = 18× × = 1÷ = ÷ = 0÷ =
①48:40
② :
③0.75:2
④ :0.6
⑤ t: kg
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