Today we are holding a special event called
This is an afternoon for all the students to show a special person some of the things they have been using their netbook for in class.
We have prepared a problem solving activity for our students to solve with their special person.
We have a toolkit of problem solving strategies that we often use in our maths lessons. Perhaps one of these strategies will help solve today’s problem?
Today’s Problem: Sealed Solution
This problem is from the NRICH website.
A set of ten cards, each showing one of the digits from 0 to 9, is divided up between five envelopes so that there are two cards in each envelope. The sum of the two numbers inside it is written on each envelope:
What numbers could be inside the “8” envelope?
Note: there is more than one solution.