Question

Please answer the question fast.​

Answer 1

$\sqrt{45} - \sqrt{125} + \sqrt{200} - \sqrt{50} \\ \sqrt{9 \times 5} - \sqrt{25 \times 5} + \sqrt{2 \times 100} - \sqrt{25 \times 2} \\ 3 \sqrt{5} - 5 \sqrt{5} + 10 \sqrt{2} - 5\sqrt{2} \\ 5 \sqrt{2} - 2 \sqrt{5}$
I think there is a mistake in question .