 |
 |
| cone
Solid with one circular base, the
points on the circle are joined to
one point outside the base. (p. 594) |
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|
congruent
figures Figures that have the same
size and shape. (p. 360) |
coordinate
plane A coordinate grid that extends
to include both positive and negative numbers.
(p. 724) |
coordinates
The two numbers in an ordered pair.
(p. 174) |
cubic
unit (unit3) A cube 1
unit on each edge
used to measure volume. (p. 610) |
cup
(c) A customary unit of capacity.
1 cup equals
8 fluid ounces. (p. 614) |
cylinder
A solid figure with two circular bases that
are congruent and parallel. (p. 594) |
 |
| data
Collected information. (p. 260) |
dekameter
(dam) A metric unit of length equal
to
10 meters. (p. 536) |
decimeter
(dm) A metric unit of length.
10 decimeters equal 1 meter. (p. 536) |
| degree
(°) A unit of measure for angles.
(p. 332) |
degree
Celsius (°C) A unit of measure
for
measuring temperature in the metric system.
(p. 568) |
denominator
The number below the fraction bar
in a fraction. (p. 394) |
diameter
Any line segment through the center
that connects two points on the circle.
(p. 336) |
difference
The number that results from
subtracting one number from another. (p.
104) |
digits
The symbols used to show numbers: 0, 1,
2, 3, 4, 5, 6, 7, 8, 9. (p. 4) |
Distributive
Property Multiplying a sum (or
difference) by a number is the same as
multiplying each number in the sum (or difference)
by the number and adding (or subtracting)
the products. (p. 70)
Example:
3 x (10 + 4) = (3 x 10) + (3 x 4) |
|
| dividend
The number to be divided. (p. 152) |
divisibility
rules Rules that are used to find
if a
number is divisible by numbers such as 2,
3, 4, 5,
6, 9, or 10. (p. 162) |
divisible
A number is divisible by another number
if there is no remainder after dividing.
(p. 162) |
divisor
The number used to divide another
number. (p. 152) |
double
bar graph A bar graph that displays
two
different shaded bars to compare the two
sets of
data. (p. 262) |
 |
edge
A line segment
where two faces meet
in a solid figure. (p. 594) |
 |
|
elapsed
time The difference between two times.
(p. 564) |
equally
likely (outcomes) Having the same
chance of occurring. (p. 296) |
equal
ratios Ratios that show the same
comparison. (p. 648) |
equation
A number sentence that uses an
equal sign to show that two expressions
have
the same value. (p. 108)
Examples:
9 + 3 = 12, x
- 5 = 10 |
equilateral
triangle A triangle whose sides all
have the same length. (p. 342) |
equivalent
decimals Decimals which name the
same amount. (p. 8)
Examples:
0.7 = 0.70 |
equivalent
fractions Fractions that name the
same part of a whole region, length, or
set.
(p. 410)
Example:
 |
estimate
To give an approximate value rather
than an exact answer. (p. 204) |
event
A collection of one or more outcomes.
(p. 296) |
expanded
form A way to write a number that
shows the place value of each digit. (p.
4)
Example:
3,000 + 500 + 60 + 2 |
exterior
(of an angle) The points outside
the
rays that form an angle. (p. 332) |
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