number/ measures

12345678910
Across
  1. 5. 2,3,5,7,11,13,19,23,29 are these type of numbers
  2. 8. there are 100cm that equal one ......
  3. 9. base x height then divided by two is the formula for the area of this shape
  4. 10. there are 1000 ml that equal one .....
Down
  1. 1. 1, 4,9,16,25,36,49,64,81,100,121,144 are these types of numbers
  2. 2. to convert 4500ml to litres you .....by 1000
  3. 3. 1000 of these equal 1 kg
  4. 4. true or false: the average man is 1.8metres tall
  5. 6. to convert 4.5kg to grams you ......by 1000
  6. 7. angle this angle is 90 degrees