Rational Numbers Word Problems

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 a positive and a negative rational number?

Back

To add a positive and a negative rational number, subtract the absolute values and take the sign of the number with the larger absolute value.

Front

What is the sum of 5 + (−4)?

Back

1

Front

How do you find the distance between two points on a number line?

Back

To find the distance between two points, subtract the smaller number from the larger number.

Front

If a temperature drops from 10 degrees to a lower temperature, how do you calculate the new temperature?

Back

Subtract the drop in temperature from the initial temperature.

Front

What is the result of ⅗ + (−⅕)?

Back

⅖

Front

In a word problem, how do you interpret 'below ground' in terms of rational numbers?

Back

'Below ground' is represented as a negative value.

Front

If Tim plants a seed 5¼ inches below ground and it grows 11½ inches, how do you find the height above ground?

Back

Add the absolute value of the depth to the growth: 11½ + 5¼ = 16¾ inches above ground.

Front

What is the distance Mrs. Byrne drives north and then south?

Back

She drives 3.4 miles north and 6.1 miles south, so the total distance from her house to Mrs. Mangini's house is 2.7 miles.

Front

How do you represent a temperature drop of 24 degrees from 10 degrees?

Back

10 - 24 = -14 degrees.