M7U2L1 Practice Problem Set

Front

What is the definition of elevation in relation to sea level?

Back

Elevation is the height of a point or object above or below sea level, measured in meters.

Front

How do you compare two negative numbers to determine which is smaller?

Back

When comparing two negative numbers, the number with the greater absolute value is smaller. For example, -12 is smaller than -5.

Front

What is the elevation of a point that is 12 meters below sea level?

Back

The elevation is -12 meters.

Front

If a bird is 28 meters above sea level, what is its elevation?

Back

The elevation is 28 meters.

Front

How do you express the relationship between two numbers using comparison symbols?

Back

You can use > (greater than), < (less than), or = (equal to) to express the relationship between two numbers.

Front

What is the result of comparing 5 and -5 using comparison symbols?

Back

5 > -5.

Front

What is the result of comparing -12 and -24 using comparison symbols?

Back

-12 > -24.

Front

What is the significance of zero in comparing positive and negative numbers?

Back

Zero is greater than all negative numbers and less than all positive numbers.

Front

How do you determine the colder temperature between two cities?

Back

The city with the lower temperature value is colder. For example, -12°C is colder than -5°C.

Front

What is the absolute value of a negative number?

Back

The absolute value of a negative number is its distance from zero on the number line, expressed as a positive number.