Correcting one piece of information

I was looking at a question similar to the one below

Screen Shot 2019-05-22 at 10.27.59

I started thinking about the responses that my class had given;

Some found that Ades amount couldn’t be £15 (£10 × 1.5  = £15 and then £10 and £15 didn’t make £35)

Some used the fact ‘1.5 times more’ to show that amounts were £14 and £21

Some used the fact that if Bella had £10 and Ade had £10 × 1.5 = £15 then the total was incorrect. I started thinking about what pupils would do to ‘fix’ the error. What if the total amount was wrong? What if the ‘1.5’ was wrong? What if Bella’s amount was wrong?

Screen Shot 2019-05-22 at 10.28.07

Correct one Piece of Information

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