Math 7th Grade

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Across
  1. 3. Grouping doesn't matter, (a+b)+c= a+(b+c)
  2. 6. Multiplying by "1" doesn't change the number
  3. 8. opposite
  4. 10. one of a pair of numbers whose product is 1: when I multiply 2/3 times 3/2 I get 1
  5. 12. Multiplying reciprocals results in "1"
  6. 16. Order doesn't matter, A + B = B + A
  7. 17. tells you to divide
Down
  1. 1. tells you to subtract
  2. 2. a(b + c) = ab + ac
  3. 4. tells you to add
  4. 5. Adding "0" to a number doesn't change the number
  5. 7. A mathematical statement that two expressions are equal.
  6. 9. adding opposites results in "0"
  7. 11. out of 100
  8. 13. A mathematical sentence that contains less than, greater than, less than or equal to, greater than or equal to, or not equal
  9. 14. A mathematical phrase that contains operations, numbers, and/or variables.
  10. 15. tells you multiply