Question

計(jì)算小數(shù)加減法，先把各數(shù)的________對(duì)齊，然后按________的法則進(jìn)行計(jì)算．

Answer 1

小數(shù)點(diǎn)    整數(shù)加減法
分析：本題據(jù)小數(shù)加減法的計(jì)算法則完成即可：計(jì)算小數(shù)加、減法，先把各數(shù)的小數(shù)點(diǎn)對(duì)齊（也就是把相同數(shù)位上的數(shù)對(duì)齊），再按照整數(shù)加、減法的法則進(jìn)行計(jì)算，最后在得數(shù)里對(duì)齊橫線上的小數(shù)點(diǎn)點(diǎn)上小數(shù)點(diǎn)．
解答：根據(jù)小數(shù)加減法的計(jì)算法則可知：計(jì)算小數(shù)加減法，先把各數(shù)的小數(shù)點(diǎn)對(duì)齊，然后按整數(shù)加減法的法則進(jìn)行計(jì)算；
故答案為：小數(shù)點(diǎn)，整數(shù)加減法．
點(diǎn)評(píng)：本題考查了學(xué)生對(duì)小數(shù)加減法的掌握情況．