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Comparing and Ordering Integers. WARM-UP: Use > or < to compare the numbers. 1.) 83 108 2.) 2,376 2,367 3.) Round 568 to the nearest hundreds place. 4.) Round 5,986 to the nearest tens place.
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Comparing and Ordering Integers Confidential
WARM-UP: Use > or < to compare the numbers. 1.) 83 108 2.) 2,376 2,367 3.) Round 568 to the nearest hundreds place. 4.) Round 5,986 to the nearest tens place. Confidential
INTEGERS are all of the positive whole numbers, their opposites, and zero. Example: .....-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ...... Confidential
10 8 9 -10 -9 -8 -7 -6 -5 -4 -3 -1 0 1 2 3 4 5 6 7 INTEGERS can be shown as points on a number line. -2 Integers on this side of zero are POSITIVE. Integers on this side of zero are NEGATIVE. Zero is the Origin. It is neither positive nor negative! Confidential
10 8 9 -10 -9 -8 -7 -6 -5 -4 -3 -1 0 1 2 3 4 5 6 7 OPPOSITES are 2 numbers that are the same distance from zero on the number line. . . -2 -8 AND 8 ARE OPPOSITES. They are both 8 units away from zero! Confidential
INTEGERS .....-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ...... These 2 numbers are opposites. Can you name another pair of opposites? Confidential
10 8 9 -10 -9 -8 -7 -6 -5 -4 -3 -1 0 1 2 3 4 5 6 7 Can you find the opposite of -3? . -2 How many units are they away from zero? Are they both the same number of units away from zero? Confidential
The ABSOLUTE VALUE of a number is its distance from zero on the number line. The Absolute Value of 4 is written as follows: 4 Confidential
10 8 9 -10 -9 -8 -7 -6 -5 -4 -3 -1 0 1 2 3 4 5 6 7 Let's find the Absolute Value of 4. Remember that we write the Absolute Value of 4 as 4 . . -2 The Absolute Value of 4 OR 4 is the distance that 4 is from zero. 4 is 4 units from zero. Therefore .......... 4 = 4 Confidential
10 8 9 -10 -9 -8 -7 -6 -5 -4 -3 -1 0 1 2 3 4 5 6 7 Let's find the Absolute Value of -3. Remember that we write the Absolute Value of -3 as -3 . -2 The Absolute Value of -3 OR -3 is the distance that -3 is from zero. -3 is 3 units from zero. Therefore .......... -3 = 3 Confidential
Distanceis Positive. Therefore, since Absolute Value is the distance from zero, Absolute Value is always Positive. -11 = 11 9 = 9 Confidential
Let's find..... 10 = -17 = 1 = -8 = Confidential
10 8 9 -10 -9 -8 -7 -6 -5 -4 -3 -1 0 1 2 3 4 5 6 7 We can compare and order integers using the number line. . . smaller numbers bigger numbers -2 -8 is 8 units to the left of zero. 3 is 3 units to the right of zero. Therefore... -8 < 3 Confidential
10 8 9 -10 -9 -8 -7 -6 -5 -4 -3 -1 0 1 2 3 4 5 6 7 You try this one! Order these integers on the number line. 4 -7 -3 1 -2 What is the smallest integer? -7 What is the largest integer? 4 Confidential
10 8 9 -10 -9 -8 -7 -6 -5 -4 -3 -1 0 1 2 3 4 5 6 7 Let's compare and order -5 and -9 First, let's plot the integers on the number line. . . smaller numbers bigger numbers -2 Since -9 is to the left of -5 on the number line....... -9 < -5 Confidential
1) I am a number less than 100 and greater than 20. The digit in my tens place is one less than the digit in my ones place. When you add my digits together, you get a number between 10 and 12. WHAT NUMBER AM I????? Confidential
10 8 9 -10 -9 -8 -7 -6 -5 -4 -3 -1 0 1 2 3 4 5 6 7 2.) How far away is -4 from 3? -2 Confidential
-5 5 -4 -3 -1 1 2 0 3 4 3.) Write 2 numbers between 4 and 5. -2 Are they Integers???? Confidential
-5 5 -4 -3 -1 1 2 0 3 4 4.) Write 2 numbers between -3 and -4. -2 Are they Integers? Confidential
Assessment Let's see how well we understood the lesson today. 1.) What are integers? 2.) Is zero a positive or negative integer? 3.) What is the opposite of 16? 4.) 56 = 5.) -19 = Confidential
6.) Is 4.5 an integer? 7.) True or False? Absolute Value is the distance a number is from zero. 8.) Insert < or > a. 5 b. -6 c. 0 -5 -10 -1 Confidential
Let's Review INTEGERS are all of the positive whole numbers, their opposites, and zero. Example: .....-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ...... INTEGERS consist of positive numbers, negative numbers and zero (which is neither positive nor negative). Confidential
Two numbers that are the same distance from zero on the number line are called OPPOSITES. Example: -6 and 6 The ABSOLUTE VALUE of a number is its distance from zero on the number line. ABSOLUTE VALUE is always positive! -32 = 32 18 = 18 Confidential
-5 5 -4 -3 -1 1 2 0 3 4 . . -2 < is smaller than -1 -4 If we compare 2 numbers on a number line, the number that is furthest to the left is the smaller number! Confidential
You had a GREAT lesson today! Be sure to practice what you learned! Confidential