Đề bài

Tính:

a) $\sqrt {0,04}  + \sqrt {0,25}  + 2,31$;

b) $( - \sqrt {0,09} ) + ( - \sqrt {169} ) + 12,501$;

c) $\dfrac{{\sqrt {49} }}{{\sqrt 4 }} + \dfrac{{\sqrt {225} }}{{\sqrt {144} }} - 3,5$;

d) $( - \sqrt {0,04} ).\sqrt {0,01}  + 12,02$;

e) $\left| {\dfrac{{ - 11}}{3}} \right| + {\left( {\dfrac{{ - 1}}{2}} \right)^2} - \left| {4\dfrac{1}{2} + ( - 3,25)} \right|$;

g) $\left| {\sqrt {169}  - \sqrt {900} } \right| - \left| {\dfrac{{ - 5}}{4}} \right|:{\left( {\dfrac{1}{3} - \dfrac{1}{2}} \right)^2}$.