### Domino Square

Use the 'double-3 down' dominoes to make a square so that each side has eight dots.

### 4 Dom

Use these four dominoes to make a square that has the same number of dots on each side.

### The Puzzling Sweet Shop

There were chews for 2p, mini eggs for 3p, Chocko bars for 5p and lollypops for 7p in the sweet shop. What could each of the children buy with their money?

# Brothers and Sisters

##### Stage: 2 Challenge Level:

We received this solution from someone who didn't give their name:

Lachlan is $3$
David is $7$
C is $12$

I first looked at the ones with Cassandra in and found the difference, which was $4$, so that means David and Lachlan's ages have a difference of $4$. I then worked out that $7$ and $3$ have a difference of $4$ and make $10$. So, either David is $7$ and Lachlan is $3$ or the other way round.

When I took $7$ from $19$ to get Cassandra's age, that made $12$ and it also made $12$ if I took $3$ from $15$, so it must be that way round.