\(\sqrt{0} = 0\)

\(\sqrt{16} = 4\)

\(\sqrt{196} = 14\)

\(\sqrt{25} + \sqrt{9} = 5 + 3 = 8\)

\(2 \sqrt{64} - 6 \sqrt{121} = 2 ⋅ 8 - 6 ⋅ 11 = -50\)

\(\sqrt{25} ⋅ \sqrt{9} = 5 ⋅ 3 = 15\)

\(\sqrt{7^{2} + 15} = \sqrt{49 + 15} = \sqrt{64} = 8\)

\(-\sqrt{81} = -9\)

\(\sqrt{-16}\) kan niet.

\(\sqrt{12^{2}} = 12\)

\(\sqrt{(-12)^{2}} = \sqrt{144} = 12\)

\(5 ⋅ \sqrt{16} = 5 ⋅ 4 = 20\)

\({3 \sqrt{3} \over 2} = 1\frac{1}{2} \sqrt{3} \text{.}\)

\(10 \sqrt{10} + 8 \sqrt{10} = 18 \sqrt{10}\)

\(12 \sqrt{11} - 11 \sqrt{2}\) kan niet korter.

\(2 \sqrt{3} ⋅ 4 \sqrt{12} = 8 ⋅ \sqrt{36} = 8 ⋅ 6 = 48\)

\(6 \sqrt{2} ⋅ 3 \sqrt{5} = 18 \sqrt{10}\)

\({\sqrt{15} \over \sqrt{3}} = \sqrt{5}\)

\({12 \sqrt{30} \over 2 \sqrt{10}} = {12 \over 2} ⋅ {\sqrt{30} \over \sqrt{10}} = 6 \sqrt{3}\)

\({45 \sqrt{45} \over 5 \sqrt{5}} = {45 \over 5} ⋅ {\sqrt{45} \over \sqrt{5}} = 9 ⋅ \sqrt{9} = 9 ⋅ 3 = 27\)

\((7 \sqrt{8})^{2} = 7^{2} ⋅ \sqrt{8}^{2} = 49 ⋅ 8 = 392 \text{.}\)

\((\sqrt{11})^{2} = 11 \text{.}\)

\(-8 (\sqrt{2})^{2} = -8 ⋅ 2 = -16 \text{.}\)

\((-5 \sqrt{3})^{2} - 7 (\sqrt{8})^{2} = (-5)^{2} ⋅ (\sqrt{3})^{2} - 7 ⋅ (\sqrt{8})^{2} = 25 ⋅ 3 - 7 ⋅ 8 = 19 \text{.}\)