Adding and Subtracting Rational Numbers: Word Problem Challenges

The video tutorial covers solving word problems involving bank transactions with rational numbers. It explains how to handle deposits, withdrawals, and calculate changes in account balances. The tutorial uses real-life scenarios to teach the concepts of positive and negative numbers, focusing on practical applications like managing bank accounts.

Why is money a good way to understand negative numbers?

• Because money is always positive

• Because we can relate to earning and spending money

• Because everyone likes money

• Because money is easy to count

What should you do with the paper after completing the problems?

• Throw it away

• Keep it for future reference

• Turn it into the bin or give it to the substitute

• Give it to a friend

In the first word problem, what is the total amount deposited?

• $100

• $125

• $75

• $50

In the first word problem, what is the total amount withdrawn?

• $90

• $100

• $40

• $50

In the second word problem, what is the new balance after depositing $125 into an account with a negative $35 balance?

• $35

• $90

• $125

• $-35

What is a debit in the context of bank transactions?

• A positive amount

• A negative amount

• An amount you earn

• An amount you save

In the third word problem, what is the total amount credited to Emily's account?

• $100

• $87

• $225

• $50

In the fourth word problem, what is the total amount deposited by Devon?

• $150

• $165

• $225

• $75

In the fourth word problem, what is the total amount withdrawn by Devon?

• $160

• $80

• $120

• $40

What is Devon's final account balance in the fourth word problem?

• $20

• $-20

• $40

• $-40