Standard 7.M.EE.A.01

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Across
  1. 2. for addition tells us that zero added to any number is the number itself. Zero is called the "additive identity." The identity property for multiplication tells us that the number 1 multiplied times any number gives the number itself. The number 1 is called the "multiplicative identity."
  2. 6. Expressions that have the same value.
  3. 8. you can add or multiply regardless of how the numbers are grouped.
  4. 10. A number used to multiply a variable. Example: 6z means 6 times z, and "z" is a variable, so 6 is a _____.
  5. 11. are terms whose variables (and their exponents such as the 2 in x2) are the same.
  6. 12. refers to moving stuff around. For addition, the rule is "a + b = b + a"; in numbers, this means 2 + 3 = 3 + 2. For multiplication, the rule is "ab = ba"; in numbers, this means 2×3 = 3×2.
Down
  1. 1. equal in value, amount, function, meaning, etc.
  2. 3. algebra property which is used to multiply a single term and two or more terms inside a set of parentheses. 2(3 + 6)
  3. 4. is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.
  4. 5. a mathematical phrase that can contain ordinary numbers, variables (like x or y) and operators (like add,subtract,multiply, and divide).
  5. 7. include addition, subtraction, multiplication, division, and exponentiation
  6. 9. a first-order equation involving two variables: its graph is a straight line.