Adding Integers and Temperature Changes

Mr. Buffington teaches how to add integers without a number line. The lesson covers the rules for adding integers with the same and different signs, provides practice problems, and includes a real-life application involving temperature changes. Students learn to find the sum or difference based on the signs of the integers and apply these skills to solve a word problem.

What are integers?

• Only positive numbers

• Only negative numbers

• Both positive and negative numbers

• Only whole numbers

When using a number line, what is the result of adding -3, 9, and -5?

• 0

• 6

• 11

• 1

What is the rule for adding integers with the same sign?

• Add the numbers and keep the sign

• Add the numbers and change the sign

• Subtract the numbers and change the sign

• Subtract the numbers and keep the sign

What is the result of adding -11 and -3?

• -14

• 14

• -8

• 8

How do you determine the sign when adding integers with different signs?

• Always use a negative sign

• Use the sign of the smaller number

• Use the sign of the larger absolute value

• Always use a positive sign

What is the result of adding 9 and -2?

• -11

• -7

• 7

• 11

What is the result of adding -10 and -2?

• 8

• 12

• -8

• -12

In a temperature change scenario, what does a drop in temperature represent?

• Subtracting a negative

• Subtracting a positive

• Adding a negative

• Adding a positive

If the temperature is 32°F and it drops by 4°F, what is the new temperature?

• 36°F

• 28°F

• 30°F

• 26°F

What is the result of adding -4 and 10?

• 14

• -14

• -6

• 6