\(\sqrt{0}=0\)

\(\sqrt{25}=5\)

\(\sqrt{64}=8\)

\(\sqrt{81}+\sqrt{16}=9+4=13\)

\(8\sqrt{16}-2\sqrt{25}=8⋅4-2⋅5=22\)

\(\sqrt{9}⋅\sqrt{25}=3⋅5=15\)

\(\sqrt{10^2+44}=\sqrt{100+44}=\sqrt{144}=12\)

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

\(\sqrt{-36}\) kan niet.

\(\sqrt{9^2}=9\)

\(\sqrt{(-4)^2}=\sqrt{16}=4\)

\(8⋅\sqrt{4}=8⋅2=16\)

\({7\sqrt{2} \over 8}=\frac{7}{8}\sqrt{2}\text{.}\)

\(8\sqrt{14}-2\sqrt{14}=6\sqrt{14}\)

\(2\sqrt{3}+6\sqrt{11}\) kan niet korter.

\(2\sqrt{5}⋅3\sqrt{5}=6⋅\sqrt{25}=6⋅5=30\)

\(3\sqrt{2}⋅4\sqrt{3}=12\sqrt{6}\)

\({\sqrt{80} \over \sqrt{8}}=\sqrt{10}\)

\({27\sqrt{10} \over 9\sqrt{5}}={27 \over 9}⋅{\sqrt{10} \over \sqrt{5}}=3\sqrt{2}\)

\({56\sqrt{24} \over 8\sqrt{6}}={56 \over 8}⋅{\sqrt{24} \over \sqrt{6}}=7⋅\sqrt{4}=7⋅2=14\)

\((8\sqrt{5})^2=8^2⋅\sqrt{5}^2=64⋅5=320\text{.}\)

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

\(6(\sqrt{7})^2=6⋅7=42\text{.}\)

\((-4\sqrt{2})^2-6(\sqrt{3})^2=(-4)^2⋅(\sqrt{2})^2-6⋅(\sqrt{3})^2=16⋅2-6⋅3=14\text{.}\)