Đáp án:
d) 4
Giải thích các bước giải:
\(\begin{array}{l}
a)\dfrac{{29}}{{20}} - \dfrac{9}{{20}} + \dfrac{{17 + 13}}{{30}} - \dfrac{1}{2}\\
= 1 + 1 - \dfrac{1}{2} = \dfrac{3}{2}\\
b)\sqrt {\dfrac{1}{{100}}} .50 - \sqrt {\dfrac{{25}}{{100}}} .4\\
= \dfrac{1}{{10}}.50 - \dfrac{5}{{10}}.4 = 3\\
c)\left( {\dfrac{{11}}{4} + \dfrac{{10}}{3}} \right):\left| {\dfrac{1}{{12}} - \dfrac{{37}}{6}} \right|\\
= \dfrac{{73}}{{12}}:\left( { - \dfrac{{73}}{{12}}} \right) = - 1\\
d)\dfrac{{{5^2}{{.5}^3}}}{{{5^4}}} - {\left( {25} \right)^0} = 5 - 1 = 4
\end{array}\)
