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Bat Wings

Three students had collected some data on the wingspan of some bats. Unfortunately, each student had lost one measurement. Can you find the missing information?

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Kate's Date

When Kate ate a giant date, the average weight of the dates decreased. What was the weight of the date that Kate ate?

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Balancing the Books

How many visitors does a tourist attraction need next week in order to break even?

M, M and M

Stage: 3 Challenge Level: Challenge Level:1

Try arranging all sets of numbers in order, smallest to biggest. Which of the five positions are the easiest to fill in?
If you can think of lots of possible values for one space, try to figure out the highest and the lowest it could be, and whether there are any other conditions...

Which spaces can you fill straight away?

This might help.