题目内容
3.2÷0.25×4=3.2÷(0.25×4)=3.2÷1=3.2.
错误
错误
.分析:此题出错的原因在于没有很好掌握除法的性质,除法的性质用字母表示为:a÷(b÷c)=a÷b×c.
解答:解:3.2÷0.25×4,
=3.2÷(0.25÷4),
=3.2÷(
×
),
=3.2×16,
=51.2;
故答案为:错误.
=3.2÷(0.25÷4),
=3.2÷(
| 1 |
| 4 |
| 1 |
| 4 |
=3.2×16,
=51.2;
故答案为:错误.
点评:正确掌握除法的性质即a÷(b÷c)=a÷b×c是判断此题正误的关键.
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