### Number Detective

Follow the clues to find the mystery number.

### Eight Dominoes

Using the 8 dominoes make a square where each of the columns and rows adds up to 8

### Online

A game for 2 players that can be played online. Players take it in turns to select a word from the 9 words given. The aim is to select all the occurrences of the same letter.

# Which Numbers? (1)

##### Stage: 2 Challenge Level:

I am thinking of three sets of numbers less than $101$. They are the red set, the green set and the blue set.
Can you find all the numbers in the sets from these clues?

These numbers are some of the red set: $19, 37, 55, 73, 82$, but there are others too.
These numbers are some of the green set: $5, 30, 35, 50, 70,100$, but there are others too.
These numbers are some of the blue set: $18, 27, 54, 72, 81, 99$, but there are others too.

These numbers are in one of the sets: $9, 10, 15, 37, 36, 85$, but there are others too.
These numbers are in two of the sets: $45, 55, 90$.
These numbers are not in any of the sets: $4, 12, 26, 42, 56, 77, 97$, but there are others too.

There are nine numbers altogether in the red set, eleven numbers in the blue set and twenty numbers in the green set.

There are three numbers that are in two of the sets.
There are no numbers that are in all three sets.
There are $63$ numbers altogether that are not in any of the sets.

You can download a sheet of all this information that can be cut up into cards.

Can you find the rest of the numbers in the three sets?
Can you give a name to the sets you have found?