Extra Help 12/17/24

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. For example, the absolute value of -2 is 2, and the absolute value of -6 is 6.

Front

Calculate the product of -3 and -4.

Back

The product of two negative numbers is positive. Therefore, -3(-4) = 12.

Front

Order the following numbers from least to greatest: 0.3, 1/4, 20%.

Back

20%, 1/4, 0.3. To compare, convert them to decimals: 1/4 = 0.25 and 20% = 0.2.

Front

If Mr. Smith has an account balance of -$275.78 and deposits $139.20, what is his new balance?

Back

To find the new balance, add the deposit to the current balance: -$275.78 + $139.20 = -$136.58.

Front

What is the result of dividing -25 by -5?

Back

Dividing two negative numbers results in a positive number. Therefore, (-25) ÷ (-5) = 5.

Front

What is the definition of a negative number?

Back

A negative number is a number that is less than zero, often used to represent a loss or a deficit.

Front

What does it mean to order numbers from least to greatest?

Back

Ordering numbers from least to greatest means arranging them in ascending order, starting with the smallest value and ending with the largest.

Front

What is the formula for calculating the absolute value of a number x?

Back

The absolute value of x is defined as: |x| = x if x ≥ 0, and |x| = -x if x < 0.

Front

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

Back

The result depends on the absolute values of the numbers. If the positive number is greater, the result is positive; if the negative number is greater, the result is negative.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 20% = 20 ÷ 100 = 0.2.