\[\boxed{\text{499\ (499).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1)\ \sqrt{36 \cdot 81} = \sqrt{36} \cdot \sqrt{81} =\]
\[= 6 \cdot 9 = 54.\]
\[2)\ \sqrt{900 \cdot 49} = 30 \cdot 7 = 210.\]
\[3)\ \sqrt{16 \cdot 0,25} = 4 \cdot 0,5 = 2.\]
\[4)\ \sqrt{9 \cdot 1,69} = 3 \cdot 1,3 = 3,9.\]
\[5)\ \sqrt{0,36 \cdot 1,21} =\]
\[= 0,6 \cdot 1,1 = 0,66.\]
\[6)\ \sqrt{5^{2} \cdot 3^{6}} = 5 \cdot 3^{3} =\]
\[= 5 \cdot 27 = 135.\]
\[7)\ \sqrt{4^{4} \cdot 3^{2}} = 4^{2} \cdot 3 =\]
\[= 16 \cdot 3 = 48.\]
\[8)\ \sqrt{2^{6} \cdot 5^{2}} = 2^{3} \cdot 5 =\]
\[= 8 \cdot 5 = 40.\]
\[9)\ \sqrt{2,25 \cdot 0,04 \cdot 1600} =\]
\[= 1,5 \cdot 0,2 \cdot 40 = 12.\]
\[10)\ \sqrt{13\frac{4}{9}} = \sqrt{\frac{121}{9}} =\]
\[= \frac{11}{3} = 3\frac{2}{3}.\]
\[11)\ \sqrt{1\frac{7}{9} \cdot \frac{4}{25}} =\]
\[= \sqrt{\frac{16}{9} \cdot \frac{4}{25}} = \frac{4}{3} \cdot \frac{2}{5} = \frac{8}{15}.\]
\[12)\ \sqrt{\frac{1}{16} \cdot \frac{9}{25}} = \frac{1}{4} \cdot \frac{3}{5} = \frac{3}{20}\text{.\ }\]
\[\boxed{\text{4}\text{9}\text{9}\text{.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\ 6,542\ldots > 6,452\ldots;\]
\[2) - 24,064\ldots > - 24,165\ldots.\ \]