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Level 5-6 Numbers - Roots
A square, like these tiles, of area 169 cm square has side length of how many centimetres? See question 4 to find out. (Picture courtesy of snigl3t at Flickr)

Level 5-6 Numbers - Roots

In the study of Maths, a number multiplied by itself creates its own square. The original number is called the square root of the new number. Finding square and cube roots are useful calculations with the same priority as Index in the BIDMAS order.

  1. Which of these is not a way of writing the square root of 625?
  2. The square root of 425 lies between .......
  3. The cube root of 216 is .......
  4. A square of area 169 cm2 has side length .......
  5. A cube of volume 1,000 cm3 has side length .......
  6. What is the square root of 54?
  7. What is the square root of 64 x 144?
  8. What is the cube root of 79?
  9. The square with the same area as a rectangle measuring 9 cm by 16 cm has side length .......
  10. What is the total surface area of a cube which has a volume of 729 cm3?

Author: Frank Evans

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