Question

17．計(jì)算小數(shù)除法時(shí)，要注意商的小數(shù)點(diǎn)必須和被除數(shù)的小數(shù)點(diǎn)對(duì)齊．

Answer 1

分析 除數(shù)是小數(shù)的小數(shù)除法法則：（1）先看除數(shù)中有幾位小數(shù)，就把被除數(shù)的小數(shù)點(diǎn)向右移動(dòng)幾位，數(shù)位不夠的用零補(bǔ)足； （2）然后按照除數(shù)是整數(shù)的小數(shù)除法來除：商的小數(shù)點(diǎn)要和被除數(shù)的小數(shù)點(diǎn)對(duì)齊；（2）如果除到被除數(shù)的末尾仍有余數(shù)，添0繼續(xù)除．依此即可作答．

解答 解：根據(jù)小數(shù)除法法則：計(jì)算小數(shù)除法時(shí)，商的小數(shù)點(diǎn)要和被除數(shù)的小數(shù)點(diǎn)對(duì)齊．
故答案為：商，被除數(shù)．

點(diǎn)評(píng) 此題主要考查對(duì)除數(shù)是小數(shù)的除法法則的理解和靈活運(yùn)用情況．