Question

\(\left|\dfrac{2}{5}\right|-\left|-0,2\right|.\left|-7\right|\)

Answer 1

Ta có:

\(\left|\dfrac{2}{5}\right|-\left|-0,2\right|.\left|-7\right|=\dfrac{2}{5}-0,2.7\\ =0,4-1,4=-1\)

Chúc bạn học tốt!!!

Answer 2

\(\left|\dfrac{2}{5}\right|-\left|-0,2\right|.\left|-7\right|\)

\(=\dfrac{2}{5}-0,2.7\)

\(=\dfrac{2}{5}-\dfrac{7}{5}\)

\(=\dfrac{-5}{5}=-1\)

Answer 3

\(\left|\dfrac{2}{5}\right|-\left|-0,2\right|\cdot\left|-7\right|\)

\(=\dfrac{2}{5}-0,2\cdot7\)

\(=\dfrac{2}{5}-\dfrac{7}{5}\)

\(=\dfrac{-5}{5}=-1\)