Adding and Subtracting Rational Numbers

Front

What is the result of -23.4 - 3.4?

Back

-26.8

Front

When adding decimals with different signs, what should you do?

Back

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

Front

What is 1/4 - 3/10?

Back

-1/20

Front

What is the result of -40 + 15.05?

Back

-24.95

Front

When following integer rules, should you add or subtract the fractions if one is negative?

Back

Add; the answer will be negative.

Front

Define rational numbers.

Back

Rational numbers are numbers that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is the rule for adding two rational numbers with the same sign?

Back

Add their absolute values and keep the common sign.

Front

What is the rule for subtracting rational numbers?

Back

To subtract a rational number, add its additive inverse.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the first step in adding or subtracting decimals?

Back

Align the decimal points.