小數(shù)乘法法則: 1)按整數(shù)乘法的法則算出積; 2)再看因數(shù)中一共有幾位小數(shù),就從得數(shù)的右邊起數(shù)出幾位,點(diǎn)上小數(shù)點(diǎn)。 3)得數(shù)的小數(shù)部分末尾有0,一般要把0去掉。 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