Absolute value of integer
Absolute Value of an Integer :
The absolute value of integer is the distance of that integer from 0 irrespective of the direction (negative or positive ).
On the number line, the distance from, say, 0 to +5 is said to be 5 units. So the absolute value of 5 is 5. Also, the distance from 0 to -5 is 5 units. So, the absolute value of -5 is 5.
The absolute value of is written between the two bars. For example | 2 | like this which is read as absolute value of 2 and is equal to 2.
The absolute value of -3 = | -3 | is +3 (positive 3).
So the absolute value of an integer is always positive, but the direction may be opposite ( North, East, West or South, +ve or –ve ).
Example 1 :
State the absolute values of
1) | -82 |
Solution : | -82 | = 82
2) | 34 |
Solution : | 34 | = 34.
3) | -3 - 8 |
Solution :
|-3 -8 | = |-13|
= 13
4) |8 - 15|
Solution :
| 8 - 15 | = |-7|
= 7
5) | 13 - 5 + 10 |
Solution :
|13 - 5 + 10 |
= | 8 + 10|
= |18|
= 18
6) | -6 - 25 + 40 |
Solution :
|-6 -25 + 40|
= | -31 + 40|
= |9|
= 9
7) | -8 + 12 - 31|
Solution:
|-8 + 12 -31|
= |+ 4 -31 |
=| - 27|
= 27
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Practice
|-20| |
|-2a| |
|30| |
|-5-10| |
|9 + 8| |
|-8 ÷ 2| |
| 5 x (-2)| |
|-7 x(-2)| |
|-12 + 19| |
| -12 ÷ -1| |
Integers
• Absolute value of Integers
• Absolute Value Equation
• Addition of Integers
• Multiplication of Numbers
• Division of Numbers
Number System
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