Factors and Multiples game for an adult and child. How can you make sure you win this game?
I added together some of my neighbours' house numbers. Can you explain the patterns I noticed?
Can you use the clues to complete these 3 by 3 Mathematical Sudokus?
Got It game for an adult and child. How can you play so that you know you will always win?
Can you use the clues to complete these 6 by 6 Mathematical Sudokus?
Can you find any two-digit numbers that satisfy all of these statements?
Make a set of numbers that use all the digits from 1 to 9, once and once only. Add them up. The result is divisible by 9. Add each of the digits in the new number. What is their sum? Now try some other possibilities for yourself!
Can you explain the strategy for winning this game with any target?
Which of the numbers shown is the product of exactly 3 distinct prime factors?
Weekly Problem 24 - 2006
How many of the rearrangements of the digits 1, 3 and 5 give prime numbers?
