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Josh from Befordshire says:
There are six combinations possible. Because there are three different numbers, you multiply $3$ by $2$ and then by $1$, which makes $6$.
Joshua says:
I think the answer is six combinations and how I did it was I wrote down all the correct combinations:
Jianmin (Henry Park Primary, Singapore) agrees with six combinations, using $3$ x $2$ x $1$.
Six new homes are being built! They can be detached, semi-detached or terraced houses. How many different combinations of these can you find?
This challenge is to design different step arrangements, which must go along a distance of 6 on the steps and must end up at 6 high.
Suppose there is a train with 24 carriages which are going to be put together to make up some new trains. Can you find all the ways that this can be done?