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# Math's ABC Dictionary

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by on 7 October 2013

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#### Transcript of Math's ABC Dictionary

Math ABC Dictionary
Cent
-The smallest money value in many countries, including USA. The Penny coin is the value of a cent.
X-axis
The line on a graph that runs horizontally (left-right) through zero.

Here 1 ball is added to 1 ball to make 2 balls.
-To bring two or more numbers (or things) together to make a new total.
If you add 4 and 3 you get 7.
-A graph drawn using rectangular bars to show how large each value is.
Bar Graph
A bar graph can be horizontal or vertical.
This bar graph shows there are more green M&M's than any other color.
It costs 50 cents to get on the bus.
Minus
-Subtract. Take away. Decrease by.
Y-axis
The line on a graph that runs vertically (up-down) through zero.
Octagon
An 8-sided polygon (a flat shape with straight sides).
Nickel
-A coin of the United States that is equal to five cents.
Kilogram
Line
· is straight (no curves),
· has no thickness, and
· extends in both directions without end (infinitely).
Fraction

· the bottom number (the denominator) says how many parts the whole is divided into

· the top number (the numerator) says how many you have.
Geometry
-The area of mathematics that deals with points, lines, shapes and space.
Height
-The vertical distance from top to bottom
Inch
-An inch is a measure of length.
Justify
-Use evidence or data to support a conclusion.
Polygon
A closed plane figure bounded by at least three line segments.
Quarter
U.S coin worth 25 cents monetary value.

Can also refer to 1/4th of a whole.
Right Angle
An angle which is equal to 90°, one quarter of a full revolution.
Unit
a quantity used as a standard in measurement.
Vertical
Going straight up or down as opposed to going from left to right or from right to left
The measure of how heavy an object is.
Symmetry
Describes a geometric figure or graph consisting of two parts that are equal to each other
-A symbol used to make numerals.
Digit
0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 are the ten digits we use in everyday numbers.
There are three digits in the number 100.
Equal Sign
-Shows that what is on the left of the sign is equal in value or amount to what is on the right of the sign.
3 + 4 = 7 means that 3 + 4 is equal to 7
60 seconds = 1 minute means that 60 seconds is equal to 1 minute
Part of a whole.
Plane Geometry is about flat shapes like lines, circles and triangles.

Solid Geometry is about solid (3-dimensional) shapes like spheres and cubes.
The height of the basketball hoop is too tall.
The screw is one inch in length.
There are 12 inches in a foot
-A prefix meaning a thousand.
A Metric measure of mass.
The abbreviation is kg.
1 kg = 1,000 grams

1 kg = 2.205 pounds (approximately)
This gold bar
has a mass of 1 kg.
Draw a straight line with a ruler.
A straight line is the shortest distance between any two points on a plane.
Example:
8 minus 3 is 5 (which is written 8 - 3 = 5)
When used on its own, it means in the negative direction.
Example:
"Minus 5 Degrees" means 5 degrees below zero.
A slice of pizza is 3/4ths of a whole pizza.
Answer: There are 2 nickels in a dime

+
=
How many Nickels are there in a Dime?
100 cents equals one dollar.
How many coins do you need?
What shape is a stop sign?
A regular octagon is a polygon that has eight equal sides and eight equal angles.
Examples: triangles, rectangles and pentagons.
Are Circles polygons?
Tessellate

We have units of capacity, mass, time, and weight.
Weight
How many quarters are in a dollar?
I ate a quarter of the pie.
What is the angle between ceiling and wall?
is when one shape becomes exactly like another if you flip, slide or turn it.
Which shapes are symmetric?
A pattern made of identical shapes:
* the shapes must fit together without any gaps
* the shapes should not overlap

Which shapes tessellate?
What units of measurement do we use to weigh ourselves?
In which direction are skyscrapers built?
I always check my weight at publix
Which has a heavier weight?
When graphing a coordinate across, which axis is used?
Zero
The whole number between -1 and 1, with the symbol 0
Example:
6 - 6 = 0
(the difference between six and six is zero)
I made zero dollars at work tonight.
Natasha Negreira
My chair is symmetric.
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