lesson # 68 classifying numbers family of numbers:
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Lesson # 68 Classifying Numbers Family of Numbers:. Real Numbers. Rational Numbers. Irrational Numbers. Integers. Whole Numbers. If a number can be re-written in fraction form, it is said to be rational . 5 4.25 1/30.6 - PowerPoint PPT PresentationTRANSCRIPT
Lesson # 68 Classifying NumbersFamily of Numbers:
• Real Numbers
Rational NumbersIrrational Numbers
Integers
Whole Numbers
1. If a number can be re-written in fraction form, it is said to be rational.
5 4.25 1/30.6
5/1 3/1 4 ¼ 1/3 2/3
9
Irrational Numbers:
8 6.29184… 7.112111211112…
There is no way to make these types of numbers into a fraction.
Tips and tricks to help:
(Ignore the decimal = 11 therefore = 1.1 or 1 1/10) Rational!
2.7897897… (put repeating part over the 9’s to get fractions)2 789/999 = 2 263/333 Rational!
A perfect square number is rational because it can be written as a fraction.
(If it’s not a perfect square, it’s always irrational)IRRATIONAL!
21.1 121