Add & Subtract Positive and Negative Rational Numbers

Front

What is the sum of -3/4 and -1/4?

Back

-1

Front

What is 32.15 + 24.15?

Back

56.30

Front

What is -5.62 + (-12.9)?

Back

-18.52

Front

What is 1/4 - (-3/4)?

Back

1

Front

What is -3.77 - (-2.9)?

Back

-0.87

Front

Define a rational number.

Back

A rational number is any number that can be expressed as the quotient or fraction p/q of two integers, where p is the numerator and q is the denominator (q ≠ 0).

Front

What does it mean to add a negative number?

Back

Adding a negative number is the same as subtracting the absolute value of that number.

Front

What is the result of adding two negative numbers?

Back

The result is always a negative number.

Front

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

Back

Subtracting a negative number is the same as adding its absolute value.

Front

What is the rule for adding rational numbers with different signs?

Back

Subtract the smaller absolute value from the larger absolute value and take the sign of the number with the larger absolute value.