Sum One Special
Three different integers have a sum of 1 and a product of 36 - what are they?
Three different integers have a sum of 1 and a product of 36 - what are they?
Every member of the club is a member of two committees. How many members are there in the club?
Headlines sometimes distort the truth. Read about how micromorts can be used to compare the risks of different activities.
Find $S_r = 1^r + 2^r + 3^r + ... + n^r$ where r is any fixed positive integer in terms of $S_1, S_2, ... S_{r-1}$.
This story provides an engaging context for children to share out the treasure fairly among the characters.
Can you arrange these numbers into 7 subsets, each of three numbers, so that when the numbers in each are added together, they make seven consecutive numbers?
Square numbers can be represented as the sum of consecutive odd numbers. What is the sum of 1 + 3 + ..... + 149 + 151 + 153?
This is an adding game for two players. Can you be the first to reach the target?
Five numbers added together in pairs produce: 0, 2, 4, 4, 6, 8, 9, 11, 13, 15 What are the five numbers?