Crossword for chapter 1

12345678910
Across
  1. 4. negative, positive number and zero
  2. 7. counting number
  3. 8. natural number which has exactly two distinct factors 1 and itself
  4. 9. natural numbers which divide exactly into it, leaving no remainder
  5. 10. power or exponent
Down
  1. 1. natural number multiply another number
  2. 2. largest factor which is common to all of them
  3. 3. smallest multiple for two or more natural number
  4. 5. natural number which has more than two factors
  5. 6. indicate a part of an expression which should be evaluated first