题目内容
1.98×2.1=41.58.
×
×
.分析:根据小数乘法的法则,用整数乘法的计算方法,看因数一共有几位小数,从积的右边起,数出几位,点上小数点计算的方法求出积,再进行判断即可.
解答:解:算式1.98×2.1,因数中一共有2+1=3位小数,所以算式1.98×2.1=4.158;
故答案为:×.
故答案为:×.
点评:考查了小数乘法的计算法则及运用.
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