# Introduction to Integers - Algebra 1

Introduction to Integers The Pluses and Minuses of Life Integers Defined Integers are positive and negative numbers. Integers are the set of whole numbers and their opposites. opposite integers -6 -5 -4 -3 -2 -1

negative integers 0 +1 +2 +3 +4 +5 +6 positive integers Integers Defined The sign of an integer is either positive (+) or negative (-), except zero, which has no sign. Opposite Integers: when two numbers are the same distance away from zero, on opposite sides of the number line, one will have a

positive sign, the other a negative sign. Name the opposite of each integer. -9 +8 +7 -2 -1 -10 -9

-8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 Name 3 real life situations in which integers can be used.

Write an integer to represent each situation: 15 degrees above zero a loss of 11 dollars a gain of 8 points 3 steps backward -10 -9 -8 -7 -6 -5 -4

-3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 Comparing Integers When comparing integers, you can use a number line. Which is larger -6 or -5? -10 -9 -8 -7

-6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10

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