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25 Cards in this Set
- Front
- Back
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Acute Angle
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An Acute Angle is less than 90° ( less than a right angle)
This is an acute angle |
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Obtuse Angle
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An Obtuse Angle is more than 90° but less than 180°
This is an obtuse angle |
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Reflex Angle
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A Reflex Angle is more than 180° but less than 360°
This is a reflex angle |
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Factors
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Factors are numbers that divide into it e.g 1, 2, 4, 8 are all factor of 8
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Kite
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A four sided shape that looks stretched like a diamond
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Lowest term
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The simplest you can make a fraction. e.g. 4/10 reduced to the lowest term is 2/5
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Mean
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One kind of average. You find the mean by adding all the scores together and dividing by the number of scores, e.g the mean of 1,3 and 8 is 4
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Median
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One kind of average. The middle number (in a sorted list of numbers). To find the Median, place the numbers in value order and find the middle number. Example: find the Median of {13, 23, 11, 16, 15, 10, 26}.
The middle number is 15, so the median is 15. |
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Mixed Number
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A number that contains a whole number and a fraction e.g. 5 1/2 is a mixed number
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Mode
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The number which appears most often in a set of numbers.
Example: in {6, 3, 9, 6, 6, 5, 9, 3} the Mode is 6 (it occurs most often). |
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Parallelogram
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A 4-sided flat shape with straight sides where opposite sides are equal and parallel.
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Polygon
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A plane shape with many sides.
Examples: triangles, rectangles and pentagons. |
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Prime factor
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A factor that is a also a prime number.
Example: The prime factors of 15 are 3 and 5 (3×5=15, and 3 and 5 are prime numbers). |
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Prime number
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A Prime Number can be divided evenly only by 1, or itself.
Example: 5 can only be divided evenly by 1 or 5, so it is a prime number. |
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Quotient
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The answer after you divide one number by another
dividend ÷ divisor = quotient Example: in 12 ÷ 3 = 4, 4 is the quotient |
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Range
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The difference between the lowest and highest values.
In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9, so the range is 9-3 = 6. |
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Rhombus
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A 4-sided flat shape, like a squashed square, that has all its sides of equal length and opposite sides are parallel.
It is a type of parallelogram. |
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Coordinates
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Coordinates are a set of values that show an exact position. On maps and graphs it is common to have a pair of numbers to show where a point is: the first number shows the distance along and the second number shows the distance up or down.
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Trapezium
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A 4 sided shape that has just one pair of parallel sides
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Vertex, vertices
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The point where two or more edges or sides in a shape meet.
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Icosahedron
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A solid with 20 plane faces
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Edge
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An edge is where two faces meet on a 3-D shape.
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Integer
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A positive or negative whole number e.g. -6, 0, 3
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Lowest common multiple
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(LCM) The smallest number that is a multiple of two or more numbers.
Example: the Lowest Common Multiple of 3 and 5 is 15, because 15 is a multiple of 3 and also a multiple of 5. Other common multiples include 30 and 45, etc, but they are not the lowest. |
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Square root
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The square root of a number is a value that, when multiplied by itself, gives the number.
Example: 4 × 4 = 16, so the square root of 16 is 4. The symbol is √ Another example: √36 = 6 (because 6 x 6 = 36) |
