Number Line: Comparing and Ordering IntegersLESSON 1

Number Line

Origin Positive NumbersNegative Numbers

Number Sets Counting Numbers/Natural Numbers: numbers we say

◦ {1, 2, 3, 4, 5, …}

Whole Numbers: The counting numbers and zero◦ {0, 1, 2, 3, 4, …}

Integers: The whole numbers and their opposites◦ {…, -2, -1, 0, 1, 2…}

Absolute ValueThe distance of that number from zero always positive

|−5| |5|

Comparison Symbols Less than Greater than Equal Less than or equal to Greater than or equal to

Examples Ex. 1: Arrange these integers in order from least to greatest: -2, 2, 0, 1

Ex. 2: Compare◦ -4 -3

Ex. 3 Graph the numbers in this sequence on a number line. {…, -4, -2, 0, 2, 4…}

Ex. 4 Graph two numbers that are 5 units from zero.