Maths Challenge 7

Do you think you could arrange 3 number cards to make the number 15?

1 + 9 + 5 = 15

7 + 9 - 1 = 15

How many ways can you find to do it, using cards only once?
Remember that ideas need to be added to the display in the corridor, with your name!
We look forward to seeing the best responses and awarding you the Maths Challenge certificate in assembly on Friday.