Chapter 2 Review Operations with Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you add two rational numbers with different signs?

Back

When adding two rational numbers with different signs, subtract the absolute values and take the sign of the number with the larger absolute value.

Front

What is the result of -25 + 18?

Back

-7

Front

How do you subtract a negative number from a positive number?

Back

Subtracting a negative number is the same as adding its positive counterpart.

Front

What is the result of 128 - (-26)?

Back

154

Front

How do you find the elevation after ascending from a negative elevation?

Back

Add the ascent to the negative elevation to find the new elevation.

Front

If a bus starts at -38 feet and ascends 70 feet, what is the new elevation?

Back

32 feet ABOVE sea level.

Front

What is the difference between two temperatures, 140°F and -83.5°F?

Back

223.5°F

Front

How do you calculate the difference between two temperatures?

Back

Subtract the lower temperature from the higher temperature.

Front

What is the result of multiplying -0.3 by 1.2?

Back

-0.36