# How do you find the square root of 484?

$22$
You just think that $20 \setminus \times 20 = 400$ and $21 \setminus \times 21$ can’t end with a $4$ in the last digit because $1 \setminus \times 1 = 1$ so you just multiply $22 \setminus \times 22 = 484$