\(\sqrt{0} = 0\)

\(\sqrt{49} = 7\)

\(\sqrt{81} = 9\)

\(\sqrt{49} - \sqrt{36} = 7 - 6 = 1\)

\(6 \sqrt{100} + 9 \sqrt{4} = 6 ⋅ 10 + 9 ⋅ 2 = 78\)

\(\sqrt{25} ⋅ \sqrt{64} = 5 ⋅ 8 = 40\)

\(\sqrt{8^{2} + 36} = \sqrt{64 + 36} = \sqrt{100} = 10\)

\(-\sqrt{121} = -11\)

\(\sqrt{-9}\) kan niet.

\(\sqrt{5^{2}} = 5\)

\(\sqrt{(-10)^{2}} = \sqrt{100} = 10\)

\(9 ⋅ \sqrt{25} = 9 ⋅ 5 = 45\)

\({5 \sqrt{7} \over 4} = 1\frac{1}{4} \sqrt{7} \text{.}\)

\(10 \sqrt{7} + 9 \sqrt{7} = 19 \sqrt{7}\)

\(3 \sqrt{3} + 2 \sqrt{11}\) kan niet korter.

\(4 \sqrt{5} ⋅ 5 \sqrt{5} = 20 ⋅ \sqrt{25} = 20 ⋅ 5 = 100\)

\(6 \sqrt{11} ⋅ 5 \sqrt{3} = 30 \sqrt{33}\)

\({\sqrt{48} \over \sqrt{8}} = \sqrt{6}\)

\({12 \sqrt{48} \over 2 \sqrt{8}} = {12 \over 2} ⋅ {\sqrt{48} \over \sqrt{8}} = 6 \sqrt{6}\)

\({18 \sqrt{24} \over 6 \sqrt{6}} = {18 \over 6} ⋅ {\sqrt{24} \over \sqrt{6}} = 3 ⋅ \sqrt{4} = 3 ⋅ 2 = 6\)

\((-4 \sqrt{2})^{2} = (-4)^{2} ⋅ \sqrt{2}^{2} = 16 ⋅ 2 = 32 \text{.}\)

\((\sqrt{10})^{2} = 10 \text{.}\)

\(4 (\sqrt{8})^{2} = 4 ⋅ 8 = 32 \text{.}\)

\((-3 \sqrt{8})^{2} - 2 (\sqrt{5})^{2} = (-3)^{2} ⋅ (\sqrt{8})^{2} - 2 ⋅ (\sqrt{5})^{2} = 9 ⋅ 8 - 2 ⋅ 5 = 62 \text{.}\)