Maths Crossword

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Across
  1. 5. A shape with three sides.
  2. 6. The difference between the biggest number and the smallest number in a set.
  3. 9. Lists of numbers that follow a pattern, like 2, 4, 6, 8.
  4. 10. How many minutes are in half an hour?
  5. 11. A shape with four equal sides and four right angles.
Down
  1. 1. How many months are in a year?
  2. 2. The amount of space inside a shape, find it by doing length x height.
  3. 3. The space between two lines that meet at a point, measured in degrees.
  4. 4. Add up all the numbers, then divide by how many there are, to find this kind of average.
  5. 7. How many degrees are in a right-angle?
  6. 8. A number with a point in it, like 3.5.