题目内容
竖式计算:(3、6保留两位小数)
①28.56÷0.51= | ②230÷0.46= | ③5.586÷0.72≈ | ④2.8×0.75= | ⑤0.16×1.7= | ⑥2.08×7.2≈ |
分析:根据小数乘除法的竖式计算方法进行解答即可.
解答:解:①28.56÷0.51=56;
②230÷0.46=500;
③5.586÷0.72≈7.76;
④2.8×0.75=2.1;
⑤0.16×1.7=0.272;
⑥2.08×7.2≈14.98.
②230÷0.46=500;
③5.586÷0.72≈7.76;
④2.8×0.75=2.1;
⑤0.16×1.7=0.272;
⑥2.08×7.2≈14.98.
点评:考查了小数乘除法的竖式计算方法,注意小数点的位置及“四舍五入”求近似数的方法.
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竖式计算:(3、6保留两位小数)
①28.56÷0.51= | ②230÷0.46= | ③5.586÷0.72≈ |
④2.8×0.75= | ⑤0.16×1.7= | ⑥2.08×7.2≈ |