Being resourceful
problem
Gabriel's Problem
Gabriel multiplied together some numbers and then erased them. Can you figure out where each number was?
problem
Multiplication arithmagons
Can you find the values at the vertices when you know the values on the edges of these multiplication arithmagons?
problem
Unequal Averages
Play around with sets of five numbers and see what you can discover about different types of average...
problem
Wipeout
Can you do a little mathematical detective work to figure out which number has been wiped out?