In this activity, we will be using our mental maths skills but to solve a very specific problem!
You need to get thinking a little outside of the box for this one.
For each question, you need to select alternative ways of carrying out the given calculations because the '5' key is broken on your calculator.
Work out 567 + 45
We could, for example, work out 467 + 100 + 44 + 1
Can you see that we had to do here? Create the sum in a way that removed the number 5 from the calculation?
Let's give it a go, and see how you get on!