Question

【題目】計(jì)算小數(shù)加減法，先把各數(shù)的對(duì)齊，也就是把上的數(shù)對(duì)齊，再按照加減法的法則進(jìn)行計(jì)算,最后在得數(shù)里對(duì)齊橫線上的點(diǎn)上小數(shù)點(diǎn)。

Answer 1

【答案】小數(shù)點(diǎn)；各數(shù)位；整數(shù)；小數(shù)點(diǎn)
【解析】計(jì)算小數(shù)加減法，先把各數(shù)的小數(shù)點(diǎn)對(duì)齊，也就是把各數(shù)位上的數(shù)對(duì)齊,再按照整數(shù)的加減法的法則進(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)，這里強(qiáng)調(diào)一點(diǎn)，小數(shù)點(diǎn)切記對(duì)齊。