Question
The diagram below represents black and white floor tiles at a size of five by five. If you add to this pattern to make it six by six, how many black tiles would you add to the existing pattern?
I don't know how to solve it, at first I guessed 12 black tiles but it said it was wrong.
I don't know how to solve it, at first I guessed 12 black tiles but it said it was wrong.
Answers
Ms. Sue
We can't see what the pattern is.
Try 11.
5 black tiles
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