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

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, the absolute value of -5 is 5.

Front

How do you represent a temperature drop of 10 degrees?

Back

A temperature drop of 10 degrees can be represented as a negative change, such as -10 degrees.

Front

What is the result of adding a positive number and a negative number?

Back

The result depends on the values of the numbers. If the positive number is greater, the result is positive; if the negative number is greater, the result is negative.

Front

What does it mean to descend in elevation?

Back

To descend in elevation means to move to a lower height, which can be represented by a negative integer.

Front

If a temperature rises from -5 degrees to 3 degrees, what is the change in temperature?

Back

The change in temperature is +8 degrees.

Front

What is the opposite of a positive integer?

Back

The opposite of a positive integer is its negative counterpart. For example, the opposite of +4 is -4.

Front

How do you calculate the sum of two rational numbers?

Back

To calculate the sum of two rational numbers, convert them to a common denominator if necessary, then add the numerators and keep the denominator.

Front

What is the result of subtracting a negative number from a positive number?

Back

Subtracting a negative number is the same as adding its positive counterpart. For example, 5 - (-3) = 5 + 3 = 8.

Front

If you walk down 4 flights of stairs, how can this be represented mathematically?

Back

Walking down 4 flights of stairs can be represented as -4.