\(\sqrt{0} = 0\)

\(\sqrt{49} = 7\)

\(\sqrt{64} = 8\)

\(\sqrt{16} - \sqrt{49} = 4 - 7 = -3\)

\(9 \sqrt{36} - 10 \sqrt{4} = 9 ⋅ 6 - 10 ⋅ 2 = 34\)

\(\sqrt{9} ⋅ \sqrt{25} = 3 ⋅ 5 = 15\)

\(\sqrt{5^{2} + 24} = \sqrt{25 + 24} = \sqrt{49} = 7\)

\(-\sqrt{36} = -6\)

\(\sqrt{-121}\) kan niet.

\(\sqrt{7^{2}} = 7\)

\(\sqrt{(-6)^{2}} = \sqrt{36} = 6\)

\(4 ⋅ \sqrt{25} = 4 ⋅ 5 = 20\)

\({6 \sqrt{5} \over 5} = 1\frac{1}{5} \sqrt{5} \text{.}\)

\(4 \sqrt{3} - 8 \sqrt{3} = -4 \sqrt{3}\)

\(7 \sqrt{2} + 11 \sqrt{5}\) kan niet korter.

\(3 \sqrt{8} ⋅ 4 \sqrt{2} = 12 ⋅ \sqrt{16} = 12 ⋅ 4 = 48\)

\(6 \sqrt{7} ⋅ 3 \sqrt{2} = 18 \sqrt{14}\)

\({\sqrt{35} \over \sqrt{5}} = \sqrt{7}\)

\({18 \sqrt{70} \over 6 \sqrt{7}} = {18 \over 6} ⋅ {\sqrt{70} \over \sqrt{7}} = 3 \sqrt{10}\)

\({8 \sqrt{63} \over \sqrt{7}} = 8 ⋅ {\sqrt{63} \over \sqrt{7}} = 8 ⋅ \sqrt{9} = 8 ⋅ 3 = 24\)

\((-2 \sqrt{3})^{2} = (-2)^{2} ⋅ \sqrt{3}^{2} = 4 ⋅ 3 = 12 \text{.}\)

\((\sqrt{3})^{2} = 3 \text{.}\)

\(4 (\sqrt{6})^{2} = 4 ⋅ 6 = 24 \text{.}\)

\((5 \sqrt{8})^{2} - 7 (\sqrt{2})^{2} = 5^{2} ⋅ (\sqrt{8})^{2} - 7 ⋅ (\sqrt{2})^{2} = 25 ⋅ 8 - 7 ⋅ 2 = 186 \text{.}\)