Adding/Subtracting Rational Numbers

Find 6.23 + 7.5

• 14.73

• 13.55

• 1.27

• 13.73

• 0.79

• 0.7

• 0.777

(-12) + 7

• 5
• -5
• 19
• -19

8 - (-3)

• -11

• 5

• -5

• 11

What is the best way to describe the absolute value:

• 0
• the opposite of the number
• The distance between that number an zero
• a positive number

5 - (-9) =

• -4
• -9
• 4
• 14

Which integer represents a withdrawal from your bank account of $50

• -$50
• $50
• +$50

Negatives numbers are right or left of zero?

• right
• left

What do you need to have when adding unlike fractions?

• common denominator
• common numerator
• common numerator and denominator