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This guide explores the fundamentals of numbers, categorizing them into real numbers, rational numbers, integers, irrational numbers, whole numbers, and natural numbers. We will delve into the properties and relationships of these number sets, and how they apply in various mathematical contexts. Additionally, we will cover techniques for estimating and reading answers directly from graphs, enhancing your problem-solving skills. Whether you're a student or a math enthusiast, this comprehensive overview will sharpen your understanding of numbers.
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Real Numbers Rational Numbers Integers Irrational Numbers Whole Numbers Natural Numbers
I, R N, Z, Q, R Q, R Q, R 3 3
4 3 3 4
5 5 4 5 6 2 4 2 1 3
4.08 x 105 3 x 10-14 or 82,000 8.2 x 104 8.0 x 104 5.0 x 102
2.8875 x 104 or 2.89 x 104 8.1 x 10-1 5.1 x 10-4 5.12 x 104 2.58 x 105 2.00 x 100 5.05 x 105 5.00 x 10-3
8.31 m2 8 m2 83142 cm2 212 -10/9 or -1.11
0.0151 % 123 2 hrs. 123 103 min 100 105 min