Rational Numbers Test Re-take ACE 24-25

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 rational numbers with different signs?

Back

When adding two rational numbers with different signs, subtract the absolute values and take the sign of the number with the larger absolute value.

Front

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

Back

Subtracting a negative number is equivalent to adding its absolute value.

Front

What is the rule for subtracting rational numbers?

Back

To subtract a rational number, add its additive inverse (change the sign of the number being subtracted).

Front

How do you determine the sign of the result when subtracting two rational numbers?

Back

The sign of the result depends on the relative sizes of the two numbers: if the first number is larger, the result is positive; if the second number is larger, the result is negative.

Front

What is the sum of two negative rational numbers?

Back

The sum of two negative rational numbers is always negative.

Front

How do you convert a subtraction problem into an addition problem?

Back

To convert a subtraction problem into an addition problem, change the subtraction to addition and change the sign of the number being subtracted.

Front

What is the result of adding a positive rational number to a negative rational number?

Back

The result can be positive, negative, or zero, depending on the absolute values of the two numbers.

Front

What is the process for finding a common denominator when adding or subtracting fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators.

Front

How do you simplify the expression 8.5 - (-1.2)?

Back

8.5 - (-1.2) simplifies to 8.5 + 1.2, which equals 9.7.