Question

筆算小數(shù)乘法時(shí)，要把小數(shù)點(diǎn)對(duì)齊． 

Answer 1

錯(cuò)誤
分析：根據(jù)小數(shù)乘法的計(jì)算法則：小數(shù)乘法先按照整數(shù)乘法的計(jì)算法則算出積，再看兩個(gè)因數(shù)一共有幾位小數(shù)，就從積的右邊起數(shù)出幾位點(diǎn)上小數(shù)點(diǎn)．據(jù)此判斷．
解答：根據(jù)小數(shù)乘法的計(jì)算法則可知：筆算小數(shù)乘法時(shí)，要把小數(shù)點(diǎn)對(duì)齊．這種說法是錯(cuò)誤的．
故答案為：×．
點(diǎn)評(píng)：此題考查的目的是理解掌握小數(shù)乘法的計(jì)算法則，注意：不要把小數(shù)乘法的計(jì)算法則與小數(shù)加、減法的計(jì)算法則混淆．