Sloan's 7th Grade: Adding & Subtracting 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 negative numbers?

Back

When adding two negative numbers, you add their absolute values and keep the negative sign. For example, -6 + -4 = -(6 + 4) = -10.

Front

What is the result of -6.4 + -0.21?

Back

-6.61

Front

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

Back

Subtracting a negative number is the same as adding its absolute value. For example, -4 - (-2) = -4 + 2 = -2.

Front

What is the result of -3 + 8?

Back

5

Front

What does the equation -5 + -9 = -14 represent?

Back

This equation represents the total loss of points Bob experienced on his math test.

Front

What is the result of -10 - 5?

Back

-15

Front

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

Back

When subtracting a positive number from a negative number, you add the absolute value of the positive number to the negative number. For example, -10 - 5 = -10 + (-5) = -15.

Front

What is the result of -4 - (-2)?

Back

-2

Front

What is the rule for adding a positive and a negative number?

Back

When adding a positive and a negative number, subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value.