TEST 7th Grade Periods 2,3,7

What I Need To Know
Math Test 10/10
7th Grade
Chapter 1
Sections 1.1 to 1.7

• Patterns
• Variables and Expressions
• Powers and Exponents
• Order of Operations
• Mental Math
• Perimeter and Area

Key Items - All
Vocabulary
See first page of section under Key Vocabulary

• Expression (NOV)
• Variable (letter for number)
• Equation (2 expressions with equal sign
• Power (number multiplied by itself)
• Base (repeating factor in power)
• Exponent (number of times base is multiplied)
• Perimeter (distance around rectangle)
• Area (inside of rectangle)
• Variable expression (expression with variable)
• Solution (answer to problem)
• Solve (get the answer)
• Evaluate (give a value to something - number)

Key Items 1.1

• Finding a Pattern
• Identify (say what it is)
• Know next 3 numbers in sequence

Key Items 1.2 Variables and Expressions

• What is Variable
• What is an Expression
• What is the difference between Expressions and Equations
• How to evaluate
• Multi-Step problems
• Two Variable problems

Variables continued

• Know what number before variable means
• 3Y = 3 x Y = 3(Y)

Key Items 1.3 Powers and Exponents

• 3 parts of Power
• Base
• Power
• Exponent
• How to Write a Power
• Square and Cube
• 2nd power and 3rd power
• Find Value of Power

Key Items 1.4 - Order of Operation

• Order used (PEMDAS)
• Grouping
• Fraction Bar

Key Items Perimeter and Area

• Perimeter
• Measuring Distance Around
• = (2 * Length) + (2 * width)
• If square (has side not length and width) = 4 x s
  
• Area
• Measures inside
• = length * width
• Square (4 equal sides) = s2
• Units (measure i.e inch, foot, meter) is squared (ft2,in2)

Problem Solving

• 1st Step in Problem solving