Adding and Subtracting Rational Numbers

What is the rule for subtracting rational numbers?

• Add and Keep

• Rewrite as addition by using: Keep Change Change

• Keep Change Flip

When adding decimals with the same sign you.....

• subtract and take the sign of the larger number
• add the opposite
• add and keep the sign
• subtract and keep the sign

When adding decimals with different signs you....

• subtract and take the sign of the larger number
• add the opposite
• add and keep the sign
• subtract and keep the sign

Following the integer rules, would you add or subtract the fractions?

• add, the answer would be positive

• add, the answer would be negative

• subtract, the answer will be positive

• subtract the answer will be negative

Following the integer rules, would you add or subtract the fractions?

• add

• subtract

-40 + 15.05

• 55.05
• 24.95
• -24.95
• 14.65

Tags

CCSS.7.NS.A.1C

⁸/₁₅  +  (-⁶/₁₅)

• 14/15
• -2/15
• 2/15
• -14/15

 ¼ − (-¾)= 

• -1/2
• 4/0
• 1
• None of the above

Tags

CCSS.7.NS.A.1C

3/4 + 5/8=

• 8/12

• 1/8

• 11/8

• 15/40

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

-1/2 + 2/3=

• 1/6

• 3/5

• 1/5

• -2/6

Tags

CCSS.7.NS.A.1C