The children will need to use their logic skills to fit the numbers into the grid; this puzzle isn't totally straightforward and there are one or two occasions where they will have to work out which of two numbers is the correct one.
Number Challenge 2
Solve the maths problems to work out how many squares Father Christmas should move around this "treasure map" in order to find his lost key. Time to brush up those times tables!
Here is a different sort of puzzle, which asks children to count carefully in an attempt to help Father Christmas find a lost key. There is practice of up, down, left and right too.