How many squares in a 10 by 10 grid?

There are 100 squares in a 10 by 10 grid.
To discover the total number of squares in any square or rectangular grid, multiply the number of squares along two adjacent sides and you will arrive at the correct answer everytime.

From Someone Else:
The grid itself is a square alone; think about it, that's 1 on top of your 100.
Look closer. There are actually 385 squares