Question

Tính nhanh:

12,48: 0,5 * 6,25 *4 *2

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2*3,12*1,25: 0,25 * 10

Answer 1

\(\frac{12,48:0,5.6,25.4.2}{2.3,12.1,25:0,25.10}\)= \(\frac{12,48.2.6.25.4.2}{2.3,12.1,25.4.10}\)= \(\frac{3,12.4.2.1,25.5.4.2}{2.3,12.1,25.4.5.2}\)= \(4\) 

Answer 2

\(\frac{\text{12,48:0,5.6,25.4.2 }}{2.3,12.1,25:0,25.10}=\frac{12,48.2.6.25.4.2}{2.3,12.1,25.4.10}=\frac{\text{3,12.4.2.1,25.5.4.2}}{\text{2.3,12.1,25.4.5.2}}=4\)

Answer 3

4 nha bạn chuan luon