Integers and Absolute Value

The video tutorial on 'The Magic of Math' channel covers integers and absolute value. It begins with defining absolute value as the distance from zero on a number line, emphasizing that this distance is always positive. The tutorial provides examples of calculating absolute values and explains the concept of opposites, which are numbers equidistant from zero but on opposite sides. The lesson concludes with exercises on comparing numbers using absolute values and understanding inequalities.

What is the symbol used to represent the absolute value of a number?

• Square brackets

• Curly braces

• Parallel lines

• Parentheses

How is distance on a number line always described?

• As a negative number

• As a positive number

• As a fraction

• As a zero

What is the absolute value of -5?

• -5

• 10

• 0

• 5

If a number is 3 units away from 0 on a number line, what is its absolute value?

• -3

• 3

• 1

• 0

What is the absolute value of 0?

• 1

• Undefined

• 0

• -1

Which pair of numbers are considered opposites?

• 2 and 3

• -7 and 8

• 5 and 6

• -4 and 4

What is the opposite of -8?

• 8

• 0

• 16

• -8

When comparing 2 and the absolute value of -3, which is greater?

• Cannot be determined

• They are equal

• Absolute value of -3

• 2

Which inequality symbol represents 'less than'?

• <

• >

• ≥

• =

If the absolute value of a number is 7, what could the original number be?

• 7 or -7

• 0

• Only 7

• Only -7