Pop Quiz :Adding ,Multiplying & Dividing Rational Numbers

When we are adding, the rule for numbers with the same sign is...

• same signs subtract
• same signs add and keep
• same signs positive
• same signs negative

When we are adding numbers with different signs, we follow the rule of...

• different signs subtract
• different signs positive
• different signs add and keep
• different signs negative

When multiplying two numbers with the same signs, the sign of your answer will be...
(example: N x N or P x P)

• negative
• the sign of the bigger value
• the sign of the higher number
• positive

When multiplying two numbers with different signs, the answer will be ________.
(example: N x P or P x N)

• negative
• the sign of the bigger value
• positive
• the sign of the higher number

True or false: 
The rules for signs when dividing are the same as multiplying

• True
• False

When dividing fractions we...

• Keep, flip, change
• Multiply by the reciprocal
• Keep, change, flip
• All of these

4/9 + (-2/3) = 

• 1 1/9
• -1 1/9
• 2/9
• -2/9

-1 ⁷/₈ + (-3 ¹/₂)

• 5 ³/₈
• -5 ³/₈
• 1 ⁵/₈
• -1 ⁵/₈

Multiply. Write your answer in simplest form.

• 27/40
• -27/40
• 5/6
• -5/6

-1 x -1 x -1 x -1 x -1

• 1

• -5

• 5

• -1