Absolute value

The absolute value of a whole number is the natural number which results when we remove its sign:

|7| = 7     

|-3| = 3      

|0| = 0

 

 

  Exercise:

1.- Calculate the absolute value of:

a) -2

b) 11

c) -7

d) 13

 

Solutions:a) 2; b) 11; c) 7; d) 13

2.- True or false
Decide if the following sentences are true or false:
a) The absolute value is always greater than zero
True. False.     
b) The absolute values of 10 and -10 are equal
True. False.

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