This document provides definitions and explanations of common 7th grade math vocabulary terms including: 1. A 4 step method for solving problems: read, plan, solve, look back. 2. Definitions of frequency table, histogram, numerical expression, and evaluate. 3. An explanation of order of operations using an example. 4. Definitions of algebra, variable, variable expression, exponent, base, power, squared, cubed, equation, solving an equation, solution, and formula. 5. Explanations of perimeter and area.

1. Math 7 Vocabulary!!!By: Alyssa and Brittany

2. 4 Step Method 1. Read and understand 2. Make a plan 3. Solve the problem 4. Look back

3. FrequencyTableA table that organizes data into intervals

4. HistogramA graph where data is broken into intervals looks like bar graph but bars touch.

5. Numerical ExpressionA mathematical expression using numbers and operations

6. EvaluateFind the answer

7. Order of OperationsTells the order in which we should evaluate a numerical expression *5× (18-2) + (14+4) ÷ 6 + 3 -2 × 4 + 9 = 5 x 16 + 18 ÷ 6 + 3 – 2 x 4 + 9 80 + 18 ÷ 6 +3 – 8 + 9 80 + 3 + 3 - 8 + 9 83 + 3 - 8 + 9 86 – 17 =69

8. AlgebraAn equation using variables

9. VariableA letter that takes the place of a number

10. Variable expressionAn expression that contains numbers, variables, and at least one operation

11. ExponentHow many of the base to multiply

12. BaseThe number that is multiplied together

13. PowerWhen a product is written as a base with an exponent

14. SquaredTo the power of two2

15. CubedTo the power of three3

16. EquationA math sentence that has an equal sign

17. Solving an equationFind the number that makes an equation true

18. SolutionThe number that makes an equation true

19. Our equation12-(5+1)*(2+6)= 12-6*8 12-48 = -36

20. FormulaAn equation that relates 2 or more quantities

21. PerimeterThe sum of all the sides of a shape

22. AreaThe space inside of a shape