Exploring Adding and Subtracting Rational Numbers

What was the purpose of last week's assignment involving a poster?

• To create a presentation for a science project

• To practice drawing skills

• To understand the rules for adding and subtracting rational numbers

• To learn about fractions and decimals

When adding two positive rational numbers, what is the result?

• It depends on the numbers

• A positive number

• Zero

• A negative number

If you add -4 and -5, what is the result?

• -9

• 1

• 9

• -1

What should you do when adding rational numbers with different signs?

• Divide the numbers

• Multiply the numbers

• Subtract the numbers and keep the sign of the larger absolute value

• Add the numbers and keep the sign of the larger number

What is the change-change rule used for?

• Subtracting rational numbers

• Adding rational numbers

• Dividing rational numbers

• Multiplying rational numbers

How do you solve 4 - 5 using the change-change rule?

• Change to -4 + 5

• Change to 4 + (-5)

• Change to -4 - 5

• Change to 4 + 5

What is the result of -4 - (-5) using the change-change rule?

• 9

• 1

• -1

• -9

What is the result of 5 + (-10)?

• -5

• 15

• 5

• -15

If the temperature drops from -3 to -6, what is the change in temperature?

• -3 degrees

• 3 degrees

• -6 degrees

• 6 degrees

Amanda earned 20 points and then lost 25 points. What is her total score?

• -5 points

• -45 points

• 5 points

• 45 points