1. F5 To do this activity you should: Know the square numbers
Know how to find factors
Know how to find multiples
Press to start F5

2. Identify this number: Puzzle 1 It’s a factor of 140
It’s a multiple of 7
It’s not an odd number
It’s greater than 16
Its digits add up to ten

3. It’s one more than a square number
Puzzle 2
Identify this number:
What age is Mr B?
It’s < 30
It’s one more than a square number
It’s a multiple of 13

4. Identify this number: Puzzle 3 It’s a square number?
It’s a multiple of 9
It’s an even number
Its less than 40

5. It’s 1 more than one of the square numbers
Puzzle 4
Identify this number:
It’s a prime number
It’s less than 20
It’s an odd number
It’s greater than 14
It’s 1 more than one of the square numbers

6. Identify this number: Puzzle 5 It’s a multiple of 5
Its digits add up to 8
It’s also factor of 70
It’s smaller than 50

7. Identify this number: Puzzle 6 It’s a square number It’s less than 20
It’s an odd number
It’s a factor of 27

8. Make your own number puzzle:
Plenary
Make your own number puzzle:
Start with a number
Have several clues
Make a mini-poster

9. END