adding and subtracting rational numbers

solve

• 1  1/2
• - 1 5/9
• 1  5/9
• not here

-5.7 + 0.9

• 2.1
• -4.8
• -8.3
• -10.7

Divide.

• -1/10
• -5/8
• -2/20
• 5/8

When multiplying or dividing two NEGATIVE numbers, your answer will be...

• Positive

• Negative

• Depends on the largest number

• None of the above

Sharon wants to make cookies for her class bake sale. She found a recipe that calls for 2/3 cups of flour for each batch of cookies. How many batches can she make using 12 cups of flour?

• 12

• 18

• 6

• 4

A baby weighed 7.25 lb at birth. At the end of 8 months

the baby weighed 2.5 times its birth weight. How many pounds did the baby weigh at the end of 8 months?

• 14.5 lb

• 9.75 lb

• 18.125 lb

• 14.125 lbs

Mario paid a total of $12.24 for 4 packs of soda. How much did he pay for each pack?

• $36.72

• $3.06

• $12.28

• $3.60

When ADDING one NEGATIVE and one POSITIVE INTEGER, the answer will be...

• Negative

• Positive

• it depends on which number is the "biggest"

• you cannot tell without the actual numbers

solve 

• - 2/9
• - 5/9 
• 2/9
• no there

-6.3(-0.6)

• -3.78
• 5.76
• 3.78
• -5.12