Actually, there is more than 81 squares.
SQUARE SIZES Multiplication to do:
1x1=81 ---> 9x9
2x2=64 ---> 8x8
3x3=49 ---> 7x7
4x4=36 ---> 6x6
5x5=25 ---> 5x5
6x6=16 ---> 4x4
7x7=9 ---> 3x3
8x8=4 ---> 2x2
9x9=1 ---> 1x1
now add up all products or amount of squares for each size.....and you get?
285!!! there are 285 squares inn a 9x9 grid.
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81
4 squares in a 2 by 2 grid 9 squares in a 3 by 3 grid 16 squares in a 4 by 4 grid 25 squares in a 5 by 5 grid 36 squares in a 6 by 6 grid 49 squares in a 7by 7 grid 64 squares in a 8 by 8 grid 81 squares in a 9 by 9 grid 100 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
25
5