题目内容
1.26÷18=0.7

11.7÷2.6=0.45

11.7÷2.6=0.45
分析:(1)根据小数除以整数的计算方法:按整数除法的方法计算,商的小数点要和被除数的小数点对齐;整数部分不够除,商 0,点上小数点继续除;如果除到被除数的末尾仍有余数,就在余数末尾 添0,再继续除;
(2)如果除数是小数,就根据商不变的性质,把除数变成整数,然后再根据小数除以整数的计算方法进行计算即可.
(2)如果除数是小数,就根据商不变的性质,把除数变成整数,然后再根据小数除以整数的计算方法进行计算即可.
解答:解:1.26÷18=0.07;
竖式改正后如下:

11.7÷2.6=4.5;

竖式改正后如下:
11.7÷2.6=4.5;
点评:考查了小数除以整数和小数除以小数的计算法则,是基础题型.
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