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Virginia SOL Math Vocabulary 5th grade
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Terms in this set (62)
Mixed Number
a number made up of a whole number and a fraction
Equivalent
fractions or decimals with the same value but different numbers
Prime
A whole number that has exactly two factors, 1 and itself.
Composite
A number with more than two factors
Even
Numbers that can be divided equally by 2
Odd
Any number not evenly divisible by 2.
sum
the answer when adding
difference
the answer when subtracting
product
the answer when multiplying
quotient
the answer when dividing
how many more
phrase that signals subtraction
about how much
phrase that signals estimation
Area
The number of square units needed to cover a given surface.
Area of a rectangle
LENGTH X WIDTH
Area of a triangle
1/2 base x height
Perimeter
The distance around a figure
Volume
How much space an object takes up. L x W x H
1 kilometer
1,000 meters (m) =
1 meter
100 centimeters (cm) =
1 centimeter
10 millimeters (mm) =
1 kilogram
1,000 grams (g) =
1 kiloliter
1,000 liters (L) =
1 liter
1,000 mililiters (ml) =
Kilo
1,000 =
Chord
A line segment with both endpoints on the circle.
Diameter
A chord that passes through the center of the circle.
1 diameter
2 radii =
Radius
A line segment with one endpoint at the center of a circle and the other endpoint on the circle
Circumference
The distance around a circle. A circles perimeter.
1 radius
1/2 the diameter =
1 circumferance
about 3 diameters =
Acute
An angle that is less than 90 degrees
Obtuse
An angle that measures more than 90 degrees but less than 180 degrees
Right
An angle that measures 90 degrees
Straight
An angle that measures 180 degrees.
Acute Triangle
A triangle with 3 acute angles.
Right Triangle
A triangle with one right angle.
Obtuse Triangle
A triangle with one obtuse angle.
Equilateral Triangle
A triangle that has 3 congruent sides.
ScaleneTriangle
A triangle with no congruent sides.
Isosceles Triangle
A triangle with 2 congruent sides.
Protractor
A tool used to measure angles
Rectangle
A parallelogram with 4 right angles. A square is also this type of quadrilateral.
Square
A parallelogram with four congruent sides and four right angles.
Parallelogram
A quadrilateral with two pairs of parallel sides.
Rhombus
A parallelogram with 4 congruent sides. A square is also this type of quadrilateral.
Trapezoid
A quadrilateral with exactly one pair of parallel sides. A square is not this type of quadrilateral.
Tree Diagram
A diagram used to show the total number of possible outcomes
Probability
A fraction that describes how likely it is that an event will occur.
Line Graph
A graph that shows change over time.
Measures of Center
Mean, median, and mode are examples of this.
Mean
Is an average and measures Fair Share.
Mean
This 6 + 9 + 8 + 8 + 9 = 40
40 ÷ 5 = 8 shows?
Median
Middle # when put in high to low order, or the average of the 2 middle #'s.
Mode
The number that occurs most often in a set of data
Range
Biggest # - Smallest # shows variation
Open Sentence
An equation that contains a variable.
Variable
A letter or symbol used to represent a number that is unknown.
Expression
A mathematical phrase that contains operations, numbers, and/or variables. No equal sign.
Equation
A mathematical sentence that contains an equals sign.
Distributive Property
3(4 + 5) = 3 x 4 + 3 x 5
(3 x 4) + (3 x 5) = 3(4 +5)
Congruent
Having the same size and shape.
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