Why do this
problem?
This problem gives learners practice in fractions
(tenths) as well as in addition and subtraction in a
challenging form.
This sheet has
two copies of the cake with all the possible places to cut
marked.
Key questions
What is the total of all the numbers on the cake? What is
that divided by $3$?
How many numbers are there altogether on the cake?
If we cut the cake so that there is just one number on each
piece, what fraction of the whole cake would each piece be?
Possible extension
Learners could change either the number of slices or the number
of divisions and compare the results.
Possible support
Suggest using a calculator to work out what is the total of
the numbers on the cake, and on each slice.