无
*注意事项:
① × ÷
②2.4 ×2.4
③如果x÷ =y× ,那么xy(x,y大于0).
×1.6= 1.2÷ = ÷ = × ÷ =
1÷ = ÷ = + ×6= × ÷ × =
÷ = ÷ =
×8÷ = ( + )÷ =
校园里有龙眼树比芒果树少125棵,( ),芒果树有多少棵?
问:甲、乙两处相距多少千米?
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