[PDF] WHAT KIND OF NUMBER IS IT? ,





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[PDF] WHAT KIND OF NUMBER IS IT? ,

They don't include fractions Rational Numbers These are any numbers that can be expressed as a fraction, which includes all integers and most decimals




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Rational Numbers Can be expressed as a ratio of two Integers: a/b, (b ? 0); such ratios (fractions) can be expressed as terminating or repeating decimals




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[PDF] WHAT KIND OF NUMBER IS IT? ,

Rational Numbers These are any numbers that can be expressed as a fraction, which includes all integers and most decimals Examples include - 1 2 , 208,

[PDF] Real Number Chart

Rational Numbers Can be expressed as a ratio of two Integers: a/b, (b ≠ 0); such ratios (fractions) can be expressed as terminating or repeating decimals

[PDF] Supplemental handout - the decimal system - UCLA Mathematics

We have spent the last two weeks painstakingly constructing the basic number systems of mathematics: the natural numbers, integers, ratio- nals, and reals

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[PDF] WHAT KIND OF NUMBER IS IT? , 19044_6what_kind_of_number.pdf

WHAT KIND OF NUMBER IS IT?

Natural Numbers Counting Numbers, and

the fingers on your hands or the pieces of candy in a bowl. Whole Numbers These include the natural (counting) numbers, negatives or fractions, but they can describe how many cows are in a field as well as how many cows remain after they all leave. Integers -3, -2, -1, 0, 1, 2, 3...} These include the whole numbers (natural numbers and zero), and they also include negative Rational Numbers These are any numbers that can be expressed as a fraction, which includes all integers and most decimals. Examples include - ଵ 6, 208, - u, 0.66, ଼ ? 6 ;, ି 8 5, -4, ଵଽ <, 0. 75 Integers are rational numbers because 2 = ଶ 5 -13 = ି 5 7 5 Fractions are rational numbers so long as their bottom number (the denominator) is not zero, because dividing anything by zero is impossible. Decimals are rational numbers so long as they either terminate, having a limited number of digits after the decimal point. For example, 0.25 and .07 are both terminating decimals. They can also be expressed as fractions: 0.25 = ଵ 8 0.07 = ଻ 5 4 4 repeat, having an unlimited number of digits after the decimal point that repeat in a regular pattern. For example, the decimal 0.454545 are usually written as 0.6 and 0.45, although they can go on forever. They can also be expressed as fractions: 0.6 = ଶ 7 0.45 = ହ 5 5 Irrational Numbers These are any numbers that can decimals that terminate or repeat. For example, the number pi (ߨ continues for an infinite number of digits in no particular pattern.

No fraction is equal to exactly that number.

Similarly, the square root of two (ξt) can be estimated as 1.4, but 1.4 * 1.4 does not equal 2 exactly. There is no fraction equaling any decimal which, multiplied by itself, equals two. Real Numbers These are all the rational numbers (including natural numbers, whole numbers, and integers) and all the irrational numbers.

Real Numbers

Created Fall 2012

Pocatello I.S.U. Math Center Idaho Falls REND 327 Student Success Center CHE 220

208-282-3662 www.isu.edu/success/math 208-282-7925

Irrational Numbers Rational Numbers

Integers

Whole Numbers

Natural Numbers


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