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Integers . 6.3. So what is an integer ?. Set of whole numbers (this includes zero) and their opposites {…-3,-2,-1, 0, 1, 2, 3…}. An integer and its opposite are the same distance from zero on a number line. The opposite of -4 is 4… both are 4 spaces from zero. Positive Integers are….
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Integers 6.3
So what is an integer? Set of whole numbers (this includes zero) and their opposites {…-3,-2,-1, 0, 1, 2, 3…} An integer and its opposite are the same distance from zero on a number line The opposite of -4 is 4… both are 4 spaces from zero
Positive Integers are… 12 5 greater than zero. 1,234 7 Negative Integers are… -7 -12 -1,234 -5 less than zero.
Zero is… an integer that is neither positive nor negative! Zero does not have an opposite!
Is that number an integer? 0.5 -3 Yes Yes Yes Yes Yes Yes Yes Yes N0 N0 N0 N0 N0 N0 N0 N0 15 -19 -2.4 4 -123 0
Absolute Value is… number is the distance of a number from zero on the number line regardless of direction. Absolute value is represent by the absolute value bars EX:
Ordering Integers When ordering integers, smaller numbers are always to the left of larger numbers on the number line. The further left a number is on the number line, the smaller the number! Quick Vocabulary: Ascending- least to greatest Descending- greatest to least EX: -15 is smaller than -5 because -15 is to the left of -5!
Click the right answer! Which number is the smallest? -23 -13 8 20 -3 0 Which set is ordered from least to greatest? -15, -8, -3 0, -2, -4
Comparing Integers You see the small part 1st! You see the largest part 1st! Greater Than Less Than I always eat the largest number! Equal to Not Equal to
Another way to remember… < This looks this . The arrow points to the smallest number! If arrow tip points left…you say “less than”! > This looks this . Remember:The arrow points to the smallest number! If arrow tip points right…you say “greater than”!
Pick the Correct Symbol! < > -5___-7 > < 5___8 < > -2___2