7.NS.A.2 Review

Front

What is the concept of negative numbers in real life?

Back

Negative numbers represent values below zero, such as temperatures below freezing or depths below sea level.

Front

How do you multiply a negative number by a positive number?

Back

The product of a negative number and a positive number is always negative.

Front

What is the formula to find the cost per ounce of a product?

Back

Cost per ounce = Total cost / Total ounces.

Front

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

Back

New depth = Original depth x 3.5. For -12 feet, it is -12 x 3.5 = -42 feet.

Front

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

Back

Divide the total actions by the number of actions per break. For example, 21 flights / 3 flights per stop = 7 stops.

Front

What is the significance of rounding in calculations?

Back

Rounding helps simplify numbers to make them easier to work with, especially in financial calculations.

Front

What is the product of two decimal numbers?

Back

To find the product, multiply the numbers as if they were whole numbers, then place the decimal point in the result based on the total number of decimal places in the factors.

Front

How do you calculate the total time spent on multiple activities?

Back

Total time = Number of activities x Time per activity. For example, 4 stops x 15 minutes = 60 minutes.

Front

What does it mean to find the average in a set of data?

Back

The average is calculated by adding all values together and dividing by the number of values.

Front

How do you interpret a negative result in a real-world context?

Back

A negative result often indicates a loss, a decrease, or a position below a reference point.