danandmichelle
New member
- Joined
- Jun 20, 2018
- Messages
- 3
Hi there, I'm a mum trying to help my 9 and 11 year old practice some ICAS questions and having trouble with some of them. You are not supposed to use algebraic formulas to solve any of the questions.
The first question is:
Frans was given 3 white and 3 black square tiles of the same size to fill a rectangle divided into 6 of the same size square tiles. How many different arrangements can he make? I know the answer is 20 but without sitting there rearranging the 6 tiles (which isn't practical in a test situation anyway), I'm not sure how they got it!
Thank you for any help!
The first question is:
Frans was given 3 white and 3 black square tiles of the same size to fill a rectangle divided into 6 of the same size square tiles. How many different arrangements can he make? I know the answer is 20 but without sitting there rearranging the 6 tiles (which isn't practical in a test situation anyway), I'm not sure how they got it!
Thank you for any help!