Why do this
problem?
This problem practises addition, subtraction, multiplication
and division in an interesting and thought-provoking way.
Key questions
What do all the numbers on the cake add to?
How many couples are there?
How can you use this total to work out the sum of the numbers
on each couple's slices?
Possible extension
Learners who found the problem easy
might like to try
this one .
Possible support
A good place to start might be to
suggest pupils work out (with a calculator if necessary) the sum
of all the numbers on the cake.