It is easier, and you can do it in your heads as the boys in the painting, if you split the numbers in the numerator and do the squares. For example, 12^2 is (10+2)^2 and if you do the square: (10+2)^2 = 10^2 + 2x2x10 + 2^2 Use this pattern and you can solve it in your head. Great painting though!

Well done Ana!

ReplyDeleteCongratulations for your prompt solution!

It is easier, and you can do it in your heads as the boys in the painting, if you split the numbers in the numerator and do the squares.

ReplyDeleteFor example, 12^2 is (10+2)^2 and if you do the square: (10+2)^2 = 10^2 + 2x2x10 + 2^2

Use this pattern and you can solve it in your head.

Great painting though!