Download Terminating decimal Repeating decimal Non

Goal 1.01 Vocabulary
 H J MacDonald Middle
 8th Grade Math
 Littleton
Terminating Decimal
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A decimal that ends with a specific digit
Examples:
2.6
5.3566
0.003
Repeating Decimal
 A decimal with one or more repeating
digit
 Examples:
 0.33333………or 0.3
 2.77777………or 2.7
 37.121212……..or 37.12
 8.66666………or 8.6
Non-terminating Decimal
 A decimal that does not end or repeat
 Examples:

= Approximately
3.14159265358979323846………
 √5 = Approximately 2.236067976………
Non-repeating Decimal
 A decimal that does not repeat
 Examples:

= Approximately
3.14159265358979323846………
 2.13133133313333………
Real Numbers
 All numbers on the number line.
 Includes all rational and irrational
numbers.
 Positive or negative, large or small,
whole numbers or decimal numbers,
roots and pi are all Real Numbers.
Rational Number
 Any number that can be made by dividing one
integer by another. The word comes from
"ratio".
 Examples:
1/2 is a rational number (1 divided by 2, or the
ratio of 1 to 2)
0.75 is a rational number (3/4)
1 is a rational number (1/1)
2 is a rational number (2/1)
2.12 is a rational number (212/100)
-6.6 is a rational number (-66/10)
Irrational Number
 A number that cannot be written as a
simple fraction - the decimal goes on
forever without repeating.
 Example:

is an irrational number
 √5 is an irrational number
Integer
 A number with no fractional part.
Includes the counting numbers {1,2,3,…},
zero {0}, and the negative of the counting
numbers {-1, -2, -3, …}
You can write them down like this: {…, -3,
-2, -1, 0, 1, 2, 3, …}
 Examples of integers:
 -16, -3, 0, 1, 198
Whole Number
 The numbers {0, 1, 2, 3, …} etc.
 There is no fractional or decimal part.
And no negatives.
 Examples:
 5, 49 and 980 are all whole numbers.
Natural Number
 The whole numbers from 1 upwards: 1,
2, 3, and so on ….
 No negative numbers and no fractions
Radical
 An expression that has a square root,
cube root, etc.
 The symbol is √
Radicand
 The number under the (radical) symbol.
 That is, a number having its square root
taken (or cube root, 4th root, 5th root, nth
root, etc.).
 For example, 3 is the radicand in √3 .
Square Root
 A nonnegative number that must be
multiplied times itself to equal a given
number. The square root of x is written
√x.
Perfect Square
 Any number that is the square of a
rational number. For example, 0, 1, 4, 9,
16, 25, etc. are all perfect squares. So
are 1/4 and 1/9.
Hypotenuse
 The hypotenuse is the longest side of a
right triangle.
 The side opposite the right angle in a
right-angled triangle