Can someone help me please I don’t understand

Add up all the numbers that have xs on them and you should be good

To find the square root of something, you have to find the number that can multiply by itself to get the desired number.

So: 12 x 12= 144

So this means that the square root of 144 is 12.

Next: 16 x 16= 256

So 16 is the square root of 256.

The square root of any number (not negative) can easily be found by inserting that number into a calculator, then hitting the square root button.