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

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 -4 - (-2)?

Back

-4 + 2 = -2.

Front

How do you evaluate 8 + (-25) + 16 - (-25) - 16?

Back

The result is 8.

Front

What is the value of -3.28 - (-4.4) + (-p) when p = 9.7?

Back

The result is -8.58.

Front

How do you simplify the expression 3 + (-h) + (-4) when h = -7?

Back

The result is 6.

Front

What is the result of -5 - 15 - (-5) + 15?

Back

The result is 0.

Front

What is the principle of adding two rational numbers with different signs?

Back

When adding two rational numbers with different signs, subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value.

Front

What is the principle of subtracting rational numbers?

Back

To subtract a rational number, add its opposite.

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.