31 terms

# Module 2: Introduction to Construction Math

#### Terms in this set (...)

Equivalent Fractions
different fractions that name the same amount
Standard Ruler
An instrument that measures English lengths (inches, feet, and yards). See English ruler.
Metric Ruler
An instrument to measure metric lengths. Units of measure include millimeters, centimeters, and meters.
Engineer's Scale
a decimal scale graduated in units of 1 inch divided into 10, 20, 30, 40, 50, and 60 parts.
Architect's Scale
Uses fractions of an inch to represent feet and inches.
Numerator
the top number in a fraction
Denominator
the bottom number in a fraction
Improper Fraction
A fraction whose numerator is greater than or equal to its denominator.
Percentage
a ratio that compares a number to 100
Circle
the set of all points in a plane that are the same distance from a given point called the center
Triangle
A polygon with three sides.
Square
(geometry) a plane rectangle with four equal sides and four right angles
Rectangle
A quadrilateral in which the opposite sides are parallel, all angles are 90 degrees
Angle
the space between two lines or planes that intersect
Vertex
The common endpoint of an angle
Degrees
a unit for measuring angles
Circumference
the length of the closed curve of a circle
Carry
transfer (a number, cipher, or remainder) to the next column or unit's place before or after, in addition or multiplication
Sum
Whole Number
Any number that isn't a decimal or fraction.
Fractions
represents a part of a whole. We use two numbers, one over the other, to make a fraction
Decimals
Numbers to the left of the decimal point are whole numbers; numbers to the right of the decimal point are fractions with denominators of only 10, 100, 1,000, 10,000, etc.

Example: 0.6 = 6/10 = 3/5
Digits
the symbols used to write numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9
Place Value
The value of a digit based on its position within a number
Positive
greater than zero
Negative
less than zero
Difference
the answer to a subtraction problem
Borrow
To move numbers from one value column to another value column to perform subtraction problems.
Product
a quantity obtained by multiplication
Quotient
the answer to a division problem
Remainder
the part of the dividend that is left over when the dividend is not evenly divisible by the divisor