# Shared Flashcard Set

## Details

SOL Review Flash Cards
Use these to review key words and formulas for your Virginia Grade 5 Math SOL Test
107
Mathematics
06/02/2014

## Additional Mathematics Flashcards

Term
 Sum
Definition
 the answer to an addition problem (+)
Term
 difference
Definition
 the answer to a subtraction problem (-)
Term
 product
Definition
 the answer to a multiplication problem (x, ·, or parenthesis)
Term
 quotient
Definition
 the answer to a division problem (÷)
Term
 hundredths
Definition
 the second decimal place value (0.01)
Term
 thousandths
Definition
 the third decimal place value (0.001)
Term
 what is the mean and how do you find it?
Definition
 the average of a group of numbers (also called fair share), found by adding them all together and dividing by the amount of numbers
Term
 what is the median and how do you find it?
Definition
 the number in the middle of a list of numbers (they must be sorted from least to greatest before you find the median)
Term
 mode
Definition
 the most common number in a list of numbers
Term
 what is the variation and how do you find it?
Definition
 the difference between the largest and smallest numbers in a list (also called the range)
Term
 kilo
Definition
 a prefix that means 1000 times bigger
Term
 centi
Definition
 a prefix that means 100 times smaller
Term
 milli
Definition
 a prefix that means 1000 times smaller
Term
 gram
Definition
 a unit for measuring mass (pennies up to books or fruit)
Term
 kilogram
Definition
 a unit for measuring mass (large books/large fruits and up)
Term
 milligram
Definition
 a unit for measuring mass (items smaller than pennies)
Term
 milliliter
Definition
 a unit for measuring volume (anything smaller than a water bottle)
Term
 liter
Definition
 a unit for measuring volume (anything bigger than a water bottle)
Term
 meter
Definition
 a unit for measuring length (anything longer than an adult but smaller than a mile)
Term
 kilometer
Definition
 a unit for measuring length (comparable to miles)
Term
 centimeter
Definition
 a unit for measuring length (bigger than 1 or 2 inches and smaller than an adult)
Term
 millimeter
Definition
 a unit for measuring length (anything smaller than 1 or 2 inches)
Term
 tree diagram
Definition
 a tool used to list all possible outcomes in a probability experiment
Term
 probability
Definition
 the likelihood of an outcome (can be expressed as a fraction or as words like likely)
Term
 equilateral triangle
Definition
 a triangle with 3 congruent sides
Term
 isosceles triangle
Definition
 a triangle with 2 congruent sides and 1 side thats different
Term
 scalene triangle
Definition
 a triangle with no congruent sides
Term
 right triangle
Definition
 a triangle with one right angle
Term
 obtuse triangle
Definition
 a triangle with one obtuse angle
Term
 acute triangle
Definition
 a triangle with three acute angles
Term
 circumference
Definition
 the distance around a circle (about 3 times larger than diameter)
Term
 diameter
Definition
 a line that cuts a circle in half and passes through the center of a circle (twice as large as the radius)
Term
Definition
 a line that extends from the center of a circle to the outside edge
Term
 area
Definition
 the space inside of a 2D shape
Term
 perimeter
Definition
 the distance around a shape
Term
 volume
Definition
 the space inside a 3D shape
Term
 area of a rectangle
Definition
 length x width
Term
 area of a right triangle
Definition
 (length x width) ÷ 2[remember to divide by 2 because a right triangle is half of a rectangle]
Term
 how do you find the perimeter?
Definition
 add all the sides together
Term
 variable
Definition
 a letter that stands for an unknown amount in a number sentence
Term
 open sentence
Definition
 an equation or expression with a variable in it
Term
 equation
Definition
 a number sentence with an equal sign
Term
 expression
Definition
 a number sentence without an equal sign
Term
 order of operations
Definition
 PEMDAS (parenthesis, exponents, multiplication or division, addition or subtraction)
Term
 tenths
Definition
 the first decimal place value (0.1)
Term
 volume of a rectangular prism
Definition
 length x width x height
Term
 Should you line up decimals when doing addition and subtraction?
Definition
 Yes
Term
 Do you line up decimals when you multiply?
Definition
 No
Term
 Range
Definition
 the difference between the highest and lowest number in a set (synonym: variation)
Term
 How do you find the mean?
Definition
 Add all the numbers then divide by how many numbers there are.
Term
 How do you find the median?
Definition
 Put the numbers in order, then pick the number in the middle (if there are 2 in the middle, add them and divide by 2)
Term
 How do you find the mode?
Definition
 Look for the number that appears the most.
Term
 Fair Share
Definition
 A synonym for mean; this is the amount one person gets when everyone shares their total equally with everyone else.
Term
 What is 1/2 as a decimal?
Definition
 0.5
Term
 What is 1/4 as a decimal?
Definition
 0.25
Term
 What is 3/4 as a decimal?
Definition
 0.75
Term
 What is 1/5 as a decimal?
Definition
 0.2
Term
 What is 3/5 as a decimal?
Definition
 0.6
Term
 What is 1/8 as a decimal
Definition
 0.125
Term
 What is 3/8 as a decimal?
Definition
 0.375
Term
 What is 5/8 as a decimal?
Definition
 0.625
Term
 What is 7/8 as a decimal?
Definition
 0.875
Term
 What should you create to help you on probability questions?
Definition
 A tree diagram
Term
 How do you show your work for adding and subtracting fractions?
Definition
 A fraction T-chart or Whole-Fraction (W-F) chart.
Term
 How do you show your work for solving Order of Operations expressions?
Definition
 PEMDAS Pyramid (or pizza, or pie, or whatever you want to call it)
Term
 How can you show multiplication with a number and a variable?
Definition
 Put them right next to each other (like 5 times n could be shown as 5n).
Term
 What does it mean if a number is right next to parenthesis?Example: 7(8+5)
Definition
 It means multiply that number with whatever is inside the parenthesis.
Term
 What does the line in the middle of a fraction really mean?
Definition
 It means "divided by". Every fraction is actually a division problem.
Term
 Prime number
Definition
 A number with only two factors
Term
 Composite number
Definition
 A number with more than two factors
Term
 This number is neither prime nor composite
Definition
 1
Term
 What is the strategy to identify a prime or composite number (this works up to 100)?
Definition
 4-question strategy or 100 chart.4 question strategy:Ask yourself if it's a multiple of 2, 3, 5, or 7? If you say "no" 4 times, it's prime. If you say "yes" to any of those questions, it's composite.On a 100 chart, cross off 1, then circle 2, 3, 5, and 7. Shade in all the multiples of 2, 3, 5, and 7 (not counting those numbers). Circle everything that's not shaded or crossed out. You'll have the composite numbers shaded in, the prime numbers circled, and the special number (1) crossed out.
Term
 What should you do to help you on computation questions?
Definition
Term
 How do you check your work on computation questions?
Definition
 You can check your work by doing the opposite operation. For example, you can check multiplication by doing division. You can check subtraction by doing addition.
Term
 acute angle
Definition
 an angle less than 90 degrees
Term
 right angle
Definition
 an angle equal to 90 degrees
Term
 obtuse angle
Definition
 an angle more than 90 degrees
Term
 straight angle
Definition
 a 180 degree angle
Term
 acute triangle
Definition
 a triangle with three acute angles
Term
 obtuse triangle
Definition
 a triangle with one obtuse angle
Term
 right triangle
Definition
 a triangle with one right angle
Term
 scalene triangle
Definition
 a triangle where no sides are congruent
Term
 equilateral triangle
Definition
 a triangle with three congruent sides
Term
 isosceles triangle
Definition
 a triangle with two congruent sides and one side that's different
Term
 [image]
Definition
 40 Degrees
Term
 [image]
Definition
 By sides: Equilateral By angles: Acute
Term
 [image]
Definition
 By sides: Isosceles By angles: Obtuse
Term
 [image]
Definition
 Rhombus
Term
 [image]
Definition
 By sides: Scalene By angles: Right
Term
 [image]
Definition
 Trapezoid
Term
 Circumference
Definition
 The distance around a circle.
Term
 Chord
Definition
 A line that touches the outside edge of a circle at 2 points.
Term
 Diameter
Definition
 The longest chord in a circle; a line that cuts the circle in half; a chord that passes through the center of a circle.
Term
Definition
 A line that extends from the center of a circle to the outside edge.
Term
 How are the circumference and diameter related?
Definition
 The circumference is about 3 times larger than the diameter.
Term
 How are the diameter and radius related?
Definition
 The diameter is twice the size of the radius; the radius is half the size of the diameter.
Term
 How are the radius and circumference related?
Definition
 Since circumference is about 3 times larger than the diameter and the diameter is twice as big as the radius, the circumference is about 6 times bigger than the radius.
Term
 What is 1/20 as a decimal?
Definition
 0.05
Term
 What is 19/20 as a decimal?
Definition
 0.95
Term
 What is 1/25 as a decimal?
Definition
 0.04
Term
 What is 24/25 as a decimal?
Definition
 0.96
Term
 What is 1/50 as a decimal?
Definition
 0.02
Term
 Translation (a geometric transformation)
Definition
 When you move a shape
Term
 Rotation (a geometric transformation)
Definition
 When you turn a shape
Term
 Reflection (a geometric transformation)
Definition
 When you flip a shape
Term
 What's the sum of the angles in a triangle?
Definition
 180 degrees
Term
 What's the fundamental counting principle?
Definition
 It says that in a probability experiment you can determine how many outcomes are in the sample space by multiplying all of the various categories together. This only works if you are picking 1 from each category.
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