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List of harder problems

1. Zios and Zepts
                              A problem using the multiples of 3 and 7
2. Mega Arithmagon
                              Find the numbers

3. The Farmer's Fields
                              What is the area of all his fields?
4. Stars on a star make 100
                              Adding numbers to make 100
5. All the digits
                                The multiplication uses all 10 digits
6. Oranges and Lemons
                              A logic problem involving weight
7. Red and Black Tiles
                              Arranging square tiles
8. Hexagon Maze
                              A maze with multiples!
9. A Square Cake
                              An old problem with a surprising answer
10. Flowers for Granny
                               A problem using addition and multiples
11. Think of Two Numbers
                               How do I know the numbers you have chosen?
12. Five Pointed Star
                               A tricky problem using addition
13. Billy's Blots
                               Sums with missing numbers
14. Swimming at length
                               A puzzle about factors and fractions
15. Treasure Island
                               A puzzle using co-ordinates
16. Twelve pieces
                               A puzzle cutting up a rectangle
17. A Numbered Route
                               Find a way through a numbered square
18. Four numbers that add up
                               What are the numbers?

19. Curious Number
                               A puzzle that uses divisibility rules.




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You can email me if you want to tell me an answer you have found.

I do not usually give out answers unless you have really worked on the problem!



                       


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List of Puzzle Cards

This is the newest puzzle card.
1. Five Pointed Star
                              A tricky number puzzle
2. Charlie's cards
                              A number puzzle
3. What do they stand for?
                              Shapes stand for numbers
4. Multiplication
                              A puzzling multiplication
5. Hexagon Star
                              Arranging and adding the numbers 1 - 12.
6. Magic Square One Hundred
                              A puzzle card involving numbers
7. Hidden Spots
                              A puzzle card involving dice
8. The Four Ladders
                              A simple puzzle involving numbers
9. Letter Product
                              A multiplication in which letters stand for numbers
10. Birthday Cakes
                               A puzzle involving triangle numbers
11. Cut up the Square!
                               A spacial problem
12. Pick up Sticks
                               A match-stick problem
13. Shape Puzzle
                               A spacial problem arranging shapes
14. Turkeys and Pigs
                               A variation on an old theme
15. Calculator Puzzle
                               A puzzle card using a calculator
16. Star One Hundred
                               Arranging numbers on a star
17. Make a Million!
                               Numbers that add to 1,000,000
18. Little Cube Boxes
                               Which shapes can be folded into a cube?
19. A Square of Numbers
                               Arrange the numbers from 1 - 8 to make 4 sums.




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You can email me if you want to tell me an answer you have found.

I do not usually give out answers unless you have really worked on the problem!



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