### Plants

Three children are going to buy some plants for their birthdays. They will plant them within circular paths. How could they do this?

### Forgot the Numbers

On my calculator I divided one whole number by another whole number and got the answer 3.125 If the numbers are both under 50, what are they?

### Junior Frogs

Have a go at this well-known challenge. Can you swap the frogs and toads in as few slides and jumps as possible?

# Curious Number

##### Stage: 2 Challenge Level:

Do you know any divisibility rules?
A number is divisible by $3$ if its digits, when added together, are divisible by $3$. For example, take $174: 1 + 7 + 4 = 12$ which is divisible by $3$. You can add it as many times as you want. $12: 1 + 2 = 3$
A number is divisible by $6$ if it is an even number and it is divisible by $3$.
A number is divisible by $4$, if the tens and units form a number which is divisible by $4$, for example $732$ and $9048$ are divisible by $4$ (because $32$ and $48$ are divisible by $4$, but $338$ and $2342$ are not (because $38$ and $42$ are not divisible by $4$). (Why does this work?)

It could be a good idea to make a table to keep track of where the digits $1$ to $6$ could go.
Where will the even numbers have to go?
So what about the odd numbers?
Where will the $5$ have to go?