GCSE REVISION NUMBER

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Across
  1. 7. one is a ........of every number
  2. 9. this means a whole number
  3. 10. 4784 is written as 5000 to one ......figure
  4. 12. to write a number in standard form you need to write the number between one and ..... multiplied by powers of 10
  5. 14. 32.456 is written as 32.46 to two........places
  6. 15. 2,3,5,7,11,13,17,19,23,29 are all ......numbers
  7. 16. to convert pounds to euros/dollars etc you need to ......by the exchange rate
Down
  1. 1. if 3/4 of my number is 24, what is 1/8?
  2. 2. a negative x a negative equals a ........
  3. 3. 2 + - 5 means 2......5
  4. 4. a negative x a positive equals a ........
  5. 5. to work out percentage change/profit write as a fraction change divided by ....and multiply by 100
  6. 6. 1/5 is the ........of 5
  7. 8. 2 - - 5 means 2 ....5
  8. 11. 1,4,9,16,25,36,49,64,81,100,121,144,169,196,225 are all ....numbers
  9. 13. to convert euros back to pounds you need to .......by the exchange rate.