Rounding and place value

12345678910
Across
  1. 4. rounding __ when a number ends in five or higher
  2. 5. a numerical system counting in tens
  3. 6. rounding ____ when a number ends in four or lower
  4. 8. first place in a number
  5. 9. fourth place in a number
  6. 10. numbers with four different place values
Down
  1. 1. ones, tens,hundrends spot
  2. 2. third place in a number
  3. 3. second place in a number
  4. 7. makes a number simpler