Mastering Integer Addition and Subtraction Word Problems

The video tutorial explains how to solve a word problem involving temperatures in different cities. It first addresses the temperature change in Fairbanks by noon, emphasizing the concept of addition with negative numbers. The tutorial then compares the temperatures of Toronto and Chicago, illustrating how to calculate the difference between two values. The instructor uses relatable analogies, such as bank balances, to clarify the mathematical operations involved.

What is the primary mathematical operation used when the temperature 'rises by' a certain number of degrees?

• Subtraction

• Division

• Addition

• Multiplication

Tags

CCSS.7.NS.A.1C

If the temperature in Fairbanks was -27 degrees Fahrenheit and it rose by 14 degrees, what would be the new temperature?

• -11 degrees Fahrenheit

• 13 degrees Fahrenheit

• -41 degrees Fahrenheit

• -13 degrees Fahrenheit

Tags

CCSS.7.NS.A.1C

Using the analogy of money, how can you describe the situation of having -27 degrees and adding 14 degrees?

• No change in debt

• Increased debt

• Out of debt

• Still in debt but less so

Tags

CCSS.7.NS.A.1A

What is the correct method to find how much lower one temperature is compared to another?

• Subtract the higher from the lower

• Add both temperatures

• Subtract the lower from the higher

• Multiply the two temperatures

Tags

CCSS.7.NS.A.1C

If Toronto's temperature is -19 degrees and Chicago's is -5 degrees, which city is warmer?

• Cannot be determined

• Both have the same temperature

• Chicago

• Toronto

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

How do you calculate the temperature difference between two cities with temperatures -5 and -19 degrees?

• 14 degrees

• 24 degrees

• -14 degrees

• -24 degrees

Tags

CCSS.7.NS.A.1C

What is the result of -5 minus -19 using the rules of addition and subtraction of signed numbers?

• 14

• -14

• 24

• -24

Tags

CCSS.7.NS.A.1C

In terms of temperature, what does a positive difference indicate?

• The first city is warmer

• No difference in temperature

• The first city is colder

• The second city is colder

Tags

CCSS.7.NS.A.1C

What analogy is used to explain the operation of adding two numbers with different signs?

• Filling a hole

• Climbing a hill

• Digging deeper

• Balancing scales

Tags

CCSS.7.NS.A.1B

What is the final temperature difference between Toronto and Chicago?

• 14 degrees warmer in Chicago

• 14 degrees warmer in Toronto

• 5 degrees warmer in Chicago

• 19 degrees warmer in Toronto

Tags

CCSS.7.NS.A.3