Mastering Integer Word Problems: Multiplication and Division

The video tutorial covers multiplying and dividing integers through word problems. It begins with a review of rules for integer operations, using happy and sad faces to represent positive and negative results. The tutorial then presents four word problems: calculating hours for a temperature drop, weeks to repay debt, days to repay a daily payment, and yards lost by a quarterback. Each problem is solved using integer multiplication or division, reinforcing the rules discussed.

What is the result of multiplying a positive number by another positive number?

• Zero

• Positive

• Undefined

• Negative

Tags

CCSS.7.NS.A.2A

What is the result of dividing a negative number by another negative number?

• Negative

• Zero

• Undefined

• Positive

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

If the temperature drops 3 degrees per hour, how many hours will it take to drop 18 degrees?

• 3 hours

• 6 hours

• 9 hours

• 12 hours

Tags

CCSS.3.OA.A.3

Sierra owes $90 to her friends and saves $10 each week. How many weeks will it take her to repay the debt?

• 10 weeks

• 7 weeks

• 8 weeks

• 9 weeks

Tags

CCSS.3.OA.A.3

What is the extra information in Sierra's debt repayment problem?

• The total amount owed

• The number of friends

• The amount saved each week

• The number of weeks

Tags

CCSS.7.EE.B.3

If Katy is given $6 every day, how many days will it take to repay $54?

• 9 days

• 7 days

• 6 days

• 8 days

Tags

CCSS.3.OA.A.3

In Katy's repayment problem, what is the divisor?

• $54

• 9 days

• $6

• None of the above

Tags

CCSS.4.NBT.B.6

If a quarterback is sacked for a 5-yard loss on four consecutive plays, what is the total yard loss?

• 10 yards

• 15 yards

• 20 yards

• 25 yards

Tags

CCSS.3.OA.A.3

What does 'consecutive' mean in the context of the quarterback's yard loss problem?

• None of the above

• Simultaneous

• Random

• One after another

Tags

CCSS.7.NS.A.1C

What is the result of multiplying a positive number by a negative number?

• Positive

• Negative

• Zero

• Undefined

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B