Solving Integer Word Problems with Operations

The video tutorial covers basic mathematical operations, focusing on multiplication and division. It explains the concepts of positive and negative directions using real-world examples. The tutorial includes word problems involving debt division, submarine descent, and exam grading, demonstrating how to apply mathematical rules to solve them. The importance of understanding positive and negative values in different contexts is emphasized throughout.

What does grouping things together represent in mathematical operations?

• Addition

• Division

• Subtraction

• Multiplication

If something is moving to the right on a number line, what direction is it considered?

• Negative

• Undefined

• Positive

• Neutral

What does it mean if someone is in debt?

• They have no money

• They owe money

• They have positive money

• They are rich

How much does each of Sally's friends owe her if the total bill is $90 and there are 5 friends?

• $25

• $20

• $15

• $18

What is the rate of descent for the submarine?

• -900 meters per second

• 900 meters per second

• -6 meters per second

• 6 meters per second

How long will it take for the submarine to descend 900 meters at a rate of 6 meters per second?

• 100 seconds

• 200 seconds

• 150 seconds

• 250 seconds

In the multiple-choice exam, how many marks does a student get for each correct answer?

• 1 mark

• 3 marks

• 4 marks

• 2 marks

How many marks are deducted for each incorrect answer in the multiple-choice exam?

• 1 mark

• 2 marks

• 3 marks

• 4 marks

If a student answers 25 questions correctly, how many marks do they earn from these correct answers?

• 60 marks

• 90 marks

• 50 marks

• 75 marks

What is the final score of a student who answers 25 questions correctly, 9 incorrectly, and leaves 6 unanswered?

• 60 marks

• 57 marks

• 90 marks

• 75 marks