math

123456789101112
Across
  1. 2. is a guess of what you think the answer is
  2. 5. replacing a number by another number
  3. 7. A digit is a number
  4. 8. To examine 2 or more objects for same things
  5. 9. Order going up
  6. 11. Number not odd like 0,2,4,6,8 so on
  7. 12. Roughly the answer
Down
  1. 1. Order going up
  2. 3. large numbers to small to make it easier to
  3. 4. 1,10,100,1000,10000 and so on
  4. 6. Combining something again
  5. 10. figure,symbol