An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
Five numbers added together in pairs produce: 0, 2, 4, 4, 6, 8, 9, 11, 13, 15 What are the five numbers?
Weekly Problem 16 - 2012
If the odd numbers on two dice are made negative, which of the totals cannot be achieved?
If p is a positive integer and q is a negative integer, which of the following is the greatest?
E. More information needed
If you liked this question, here is an NRICH task which challenges you to use similar mathematical ideas.
This problem is taken from the UKMT Mathematical Challenges.