Properties of real

numbers

Types of real numbers

Whole number

Integer

Rational

Positive numbers in whole amounts

Positive and negative numbers in whole amounts

Positive and negative fractions, decimals and whole numbers

Opposites (-a) and absolute value |a|

If a = 7, then what is (-a) and |a|?

-7 and 7

A number’s distance from 0

If a = -12, then what is (-a) and |a|?

12 and 12If a = ⅞, then what is (-a) and |a|?

-⅞ and ⅞

Evaluate

| x | + 2 When x = -3| -3 | + 2

3 + 2 = 5

-x + | x | When x = -33 + | -3 |

3 + 3 = 6

Order the following from least to greatest, then tell whether each number is a whole

number, integer or rational number

-3.99, 3, ¹³⁄₃, -3.1

-3.99, -3.1, 3, ¹³⁄₃, W

IR R R R

Order the following from least to greatest, then tell whether each number is a whole

number, integer or rational number

-3.09, 2.0, ¹²⁄₃, -3.1

-3.1, -3.09, 2.0, ¹²⁄₃, W

IR R R R

WI

Pgs. 68-6914 – 58 even

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