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| two angles with a sum of ninety degrees. |
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| The starting point. On a number line and graph it is at 0. |
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A ratio shows the relative sizes of two or more values.
Example: if there is 1 boy and 3 girls you could write the ratio as:
1:3 (for every one boy there are 3 girls) |
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| angles that add up to 180 degrees |
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A symbol for a number we don't know yet.
x + 2 = 6, x is the variable |
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| an angle measuring less than ninety degrees |
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| a clock that has moving hands and hours marked from 1 to 12 to show you the time. |
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A calculated "central" value of a set of numbers.
The mean of a set of numbers |
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| having he same size and shape |
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| a solid object with two identical flat ends and one curved side |
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| A straight line inside a shape that goes from one corner to another. The line is at an angle |
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0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 are the ten digits we use in everyday numbers.
Example: the numeral 153 is made up of 3 digits ("1", "5" and "3"). |
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The number you divide by
dividend ÷ divisor = quotient |
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Writing a number to show the value of each digit.
16 = 10 + 6 |
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a special relationship between values
f(x) |
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| identity property of multiplication |
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also called the multiplication property of one says that a number does not change when that number is multiplied by 1
example: 3x1=1 10x1=10 88x1=88 |
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| A triangle with two equal sides |
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Part of a line connecting two points.
It has definite end points. |
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| a math equation written in numbers and symbols |
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| A triangle that has an angle greater than 90° |
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A 4-sided flat shape with straight sides where opposite sides are parallel.
NOTE: Squares, Rectangles and Rhombuses are all Parallelograms! |
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| three dimensional solid shape like a cube |
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| an angle which is equal to 90 degrees |
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| the distance from a circle's edge to its center |
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The area equal to a square that is 1 foot on each side.
it is used to measure areas of rooms, houses etc. |
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| a fraction where the numerator (the top number) is greater than or equal to the denominator (the bottom number). |
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