Podcast
Questions and Answers
Which statement is true? (Select all that apply)
Which statement is true? (Select all that apply)
The difference in height between the pelican and the heron is -33 feet.
The difference in height between the pelican and the heron is -33 feet.
False
Explain Laila's error regarding her estimation of Kelcy’s position.
Explain Laila's error regarding her estimation of Kelcy’s position.
Laila added incorrectly the depths; the correct calculation should consider total depth as -14.3 - 5.8 + 3.2 = -16.9 meters.
The expression y - x when x = -11 and y = -11.8 is __________.
The expression y - x when x = -11 and y = -11.8 is __________.
Signup and view all the answers
Match the following calculations with their results:
Match the following calculations with their results:
Signup and view all the answers
The expression -2.6 - (-4) is positive.
The expression -2.6 - (-4) is positive.
Signup and view all the answers
What is the result of (-3.7) + (-4.1)?
What is the result of (-3.7) + (-4.1)?
Signup and view all the answers
Which equation calculates the total calories William burns (y) if he jogs for (x) minutes?
Which equation calculates the total calories William burns (y) if he jogs for (x) minutes?
Signup and view all the answers
The expression -7 + 11 represents the number of passengers decreasing by 4.
The expression -7 + 11 represents the number of passengers decreasing by 4.
Signup and view all the answers
What do the numbers -10, -20, and -30 indicate about Account 5?
What do the numbers -10, -20, and -30 indicate about Account 5?
Signup and view all the answers
-3.7 + ______ = a positive number
-3.7 + ______ = a positive number
Signup and view all the answers
Which of the following could explain the expression -4.52 + [blank] = a negative number?
Which of the following could explain the expression -4.52 + [blank] = a negative number?
Signup and view all the answers
Match the numbers to their correct meanings in the context of Account 5.
Match the numbers to their correct meanings in the context of Account 5.
Signup and view all the answers
Identify one number that satisfies the equation ⃞ + −8 = 0: ⬜ ______
Identify one number that satisfies the equation ⃞ + −8 = 0: ⬜ ______
Signup and view all the answers
What is the old account balance in Account 4?
What is the old account balance in Account 4?
Signup and view all the answers
Study Notes
Math 7 Unit 2 Part A: Addition and Subtraction
-
Problem 1: Select all true statements involving addition and subtraction of integers and decimals.
- 2.3 + (-2.3) = 0 is true
- (-3.7) + 4.1 is positive
- 2.6 - (-5/2) is positive
- 5/2 + (-2.5) is negative
- 72 + (-100) is negative
-
Problem 2: A heron is 50 feet above sea level, a pelican is 17 feet above sea level, and a trout is 23 feet below sea level. Identify the difference in height between the pelican and the heron.
- The difference in height is 33 feet
-
Problem 3: Kelcy is scuba diving. He stops 14.3 meters below the surface, then swims down 5.8 meters more, then swims up 3.2 meters.
- Laila's error: She incorrectly sums the numbers (14 - 6 + 3 = 11).
- Calculation is 14.3 - 5.8 + 3.2 = 11.7
- Kelcy's final position is 11.7 meters below the surface
-
Problem 4: x = 11/8 and y = -11/4. Evaluate which expression does NOT have a negative value.
- The expression that does not have a negative value is x + y
-
Problem 5: Kymani wants to place a picture frame in the center of a 14 1/4 feet wide wall. The picture is 2 1/2 feet wide. Calculate the distance(s) from each side of the wall.
- The frame must be 5 3/4 feet from each wall side.
-
Problem 6: A graph shows the relationship between the number of minutes William jogs and the number of calories he burns. Choose the correct equation to calculate the total calories.
- The equation is y = 5x
-
Problem 7: A table displays transactions for five bank accounts.
- Part A: Find the old account balance of account 4.
- The old balance for account 4 is 75
- Part B: Explain numbers -10, -20, and -30
- These numbers represent withdrawals from account 5.
- Part A: Find the old account balance of account 4.
-
Problem 8: Which of the following situations accurately describes the numeric expression -7+11?
- Option C correctly describes the expression: at a bus stop, 7 people get on a bus, 11 get off.
-
Problem 9: Select numbers to complete the sentences based on addition of negative and positive numbers
- -3.7 + -4.9 = -8.6
- -4.9 or -5.4. Combined results in a negative value
- -5.4 + -4.52 = -9.92
-
Problem 10: Select the values that result in zero
- -8 and 8
- -(-8)
- (0)
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your understanding of addition and subtraction with integers and decimals in this Math 7 quiz. Solve problems involving heights and scuba diving scenarios to reinforce your calculations with positive and negative numbers. Challenge yourself to identify true statements and evaluate expressions.
