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terms
The two numbers being compared in a
ratio. (p. 649) |
thousandth
One out of 1,000 equal parts of a
whole. (p. 8) |
ton
(T) A customary unit of weight equal
to
2,000 pounds. (p. 620) |
transformation
A move such as a slide, flip, or
turn that does not change the size or shape
of a
figure. (p. 364) |
trapezoid
A quadrilateral that has
exactly one pair of parallel
sides. (p. 346) |
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tree
diagram A diagram used to organize
outcomes of an experiment. (p. 300) |
| trend
The general direction in a data set. (p.
266) |
| triangle
A polygon with 3 sides. (p. 340) |
turn
(rotation) The change in the position
of a
figure that moves it around a point. (p.
364) |
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underestimate
The result of using smaller
numbers to estimate a sum or product. The
estimate is smaller than the actual answer.
(p. 68) |
unit
rate A rate where the comparison
is to 1 unit.
(p. 654) |
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variable
A letter, such as n,
that stands for a
number in an expression or an equation.
(p. 100) |
|
vertex
(plural, vertices) (in an angle)
The
common endpoint in an angle. (p. 332) |
vertex
(in a polyhedron) A point where edges
meet in a polyhedron. (p. 594) |
volume
The number of cubic units that fit inside
a
solid figure. (p. 610) |
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weight
A measure of how light or how heavy
something is. (p. 620) |
word
form A number written in words using
place
value. (p. 4) |
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x-value
The first number in an ordered pair.
(p. 724) |
 |
y-value
The second number in an ordered pair.
(p. 724) |
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zero
property of Multiplication In multiplication,
the product of a number and 0 is 0. (p.
76)
Example:
8 x 0 = 0 (p. 76) |
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