7.NS.A.2 Review

Front

What is the formula to calculate the total cost of an item based on its price per pound and weight in pounds?

Back

Total Cost = Price per Pound × Weight in Pounds

Front

If a scuba diver is at a depth of -12 feet and dives down to a depth that is 3.5 times deeper, how do you calculate the new depth?

Back

New Depth = Original Depth × 3.5 (New Depth = -12 × 3.5 = -42 feet)

Front

How do you find the cost per ounce of a product?

Back

Cost per Ounce = Total Cost / Total Ounces

Front

What does a negative value indicate when measuring depth below sea level?

Back

A negative value indicates that the measurement is below sea level.

Front

If a shopper buys multiple items, how do you calculate the total amount spent?

Back

Total Amount Spent = Price of Item × Quantity of Items

Front

What is the significance of the change in value of a gift card after a purchase?

Back

The change in value indicates how much money is left on the gift card after the purchase.

Front

How do you determine how many times someone stops to rest if they take breaks after a set number of flights?

Back

Number of Stops = Total Flights / Flights per Stop

Front

What is the relationship between positive and negative numbers in real-world contexts?

Back

Positive numbers often represent above sea level or gains, while negative numbers represent below sea level or losses.

Front

How do you round a number to the nearest cent?

Back

Look at the third decimal place; if it's 5 or more, round up the second decimal place by one.

Front

What is the importance of understanding unit rates in shopping?

Back

Unit rates help compare prices and determine the best value for money.