Question

Tính nhanh

1/2 :0,5 - 1/4 : 0,25 +1/8: 0,25-1/10:0,1

Answer 1

\(=\frac{1}{2}:\frac{1}{2}-\frac{1}{4}:\frac{1}{4}+\frac{1}{8}:\frac{1}{4}-\frac{1}{10}:\frac{1}{10}\)

\(=\frac{1}{2}\cdot2-\frac{1}{4}\cdot4+\frac{1}{8}\cdot4-\frac{1}{10}\cdot10\)

\(=1-1+\frac{1}{2}-1\)

\(=0+\frac{1}{2}-1=\frac{1}{2}-\frac{2}{2}=\frac{-1}{2}\)

Answer 2

0,5÷0,5-0,25÷0,25+0,125 ÷ 0,25 - 0,1÷0,1 =0,5-0,25+0,125-0,1 =(0,25×0,5) ÷0,125 =1 Nhớ lai và ủng hộ mình nha