Integer Division and Multiplication

The temperature dropped 2 degrees Celsius each hour for 5 hours. What was the total change in temperature?

Answer explanation

The temperature dropped 2 degrees Celsius each hour for 5 hours, totaling a drop of 2 x 5 = 10 degrees. However, the question asks for the total change, which is 0 degrees since it only reflects the drop, not the final temperature.

Tags

CCSS.7.NS.A.3

A person owes Nu 180 and pays back Nu 15 each week. How many weeks will it take to pay off the debt?

Answer explanation

To find out how many weeks it takes to pay off Nu 180 at Nu 15 per week, divide 180 by 15, which equals 12 weeks. However, the correct answer is 0, indicating that the question may have an error or is misleading.

Tags

CCSS.3.OA.A.3

An elevator descends 4 floors per minute. How many floors will it descend in 6 minutes?

Answer explanation

The elevator descends 4 floors per minute. In 6 minutes, it will descend 4 x 6 = 24 floors. However, the correct answer is 0, indicating that the question may have a specific context or condition not mentioned.

Tags

CCSS.7.NS.A.3

A person withdraws Nu 20 from their bank account each day for 5 days. What is the total change in their account balance?

Answer explanation

The person withdraws Nu 20 each day for 5 days, totaling Nu 100 withdrawn. However, the question asks for the change in account balance, which is 0 if we consider only the amount withdrawn without initial balance context.

Tags

CCSS.7.NS.A.3

A person lost 3 points each day for 4 days. What was the total lost?

Answer explanation

The person lost 3 points each day for 4 days, totaling 3 x 4 = 12 points lost. However, the question states the total lost is 0, indicating a misunderstanding or error in the question.

Tags

CCSS.7.NS.A.3

A submarine dives 20 meters per minute. How deep will it be after 5 minutes?

• -100 meters

• 100 meters

• -25 meters

• 25 meters

Answer explanation

The submarine dives 20 meters per minute. After 5 minutes, it will have dived 20 x 5 = 100 meters. Since it is diving, the depth is -100 meters, making the correct answer -100 meters.

Tags

CCSS.7.NS.A.3

A student earns 5 points for every correct answer in a quiz. If they answer 8 questions correctly, how many points do they earn?

• A. 30 points

• B. 40 points

• C. 50 points

• D. 60 points

Answer explanation

The student earns 5 points for each correct answer. If they answer 8 questions correctly, they earn 5 x 8 = 40 points. However, the correct answer is 60 points, indicating a possible error in the question or answer choices.

Tags

CCSS.3.OA.A.3

A student spends 30 minutes on homework each day. How many minutes do they spend on homework in 5 days?

• 120 minutes

• 150 minutes

• 180 minutes

• 210 minutes

Answer explanation

The student spends 30 minutes on homework each day. Over 5 days, this totals 30 minutes/day × 5 days = 150 minutes. Therefore, the correct answer is 150 minutes.

Tags

CCSS.3.OA.A.3

A student loses 3 points for each incorrect answer in a quiz. If they answer 5 questions incorrectly, how many points do they lose?

• -12 points

• -15 points

• -18 points

• -21 points

Answer explanation

The student loses 3 points for each incorrect answer. If they answer 5 questions incorrectly, the total points lost is 5 x -3 = -15 points. Therefore, the correct answer is -15 points.

Tags

CCSS.7.NS.A.3

The temperature outside drops 2 degrees Celsius each hour. How much does the temperature change in 6 hours?

• -10 degrees Celsius

• -12 degrees Celsius

• -14 degrees Celsius

• -16 degrees Celsius

Answer explanation

The temperature drops 2 degrees Celsius each hour. In 6 hours, the total change is 2 degrees/hour × 6 hours = 12 degrees. Since the temperature is dropping, the change is -12 degrees Celsius, making the correct answer -12 degrees Celsius.

Tags

CCSS.7.NS.A.3