Absolute Value/Opposite of Rational Numbers

I dove into the ocean and was 20 feet below sea level.  What is the absolute value?

• -20
• 20
• below zero
• below sea level

The absolute value of 2.25?

• 3.25
• -2.25
• 2.25
• .25

Which number is farthest from 0?

• 2.25
• 3.29
• -2.50
• -3.30

The absolute value of -10.45

• 10.45
• 10.5
• -10.45
• -10.5

What is the reason that absolute value is always written as a positive?

• Absolute value is talking about numbers so it must be positive.
• Absolute value does not always have to be positive. It can be negative.
• Absolute value is like a clock it has only positive numbers.
• Absolute value is talking about distance of a number from zero, distance is always measured by positive numbers.

What is the opposite of ⅕?

• -0.15
• -⅕
• ⅕
• 0.15

What is graphed on the number line?

• -2⅞ and its opposite 2⅞
• -3 and its opposite 3
• -2¼ and its opposite 2¼
• -2.2 and its opposite 2.

The number line shows a rational number and its opposite.  Name the numbers graphed.

• -0.9 & 0.9
• -½ & ½
• -1.2 & 1.2
• -¾ & ¾