Integers and Operations

Vocabulary flashcards covering key terms and definitions related to integers and their operations.

Integer

Positive and negative whole numbers and zero.

Absolute Value

The distance between a number and 0 on a number line.

Deposit

A positive amount of money added to an account.

Withdraw

A negative amount of money subtracted from an account.

Mean

The average value of a set of numbers, calculated by summing the numbers and dividing by the count.

Adding Integers

Combining integers according to their signs; if signs are the same, add; if different, subtract.

Dividing Integers

Dividing integers while determining if the result is positive or negative based on the signs of the numbers.

Subtracting Integers

Changing subtraction to addition by using the opposite of the second number.

Change in Account Balance

The difference in the amount of money in an account after deposits and withdrawals.

Mean Hourly Change

The average change in a value per hour over a specified time period.

What is the absolute value of -4?

The absolute value of -4 is 4.

If you deposit $100 into your account and withdraw $40, what is the change in your account balance?

The change in account balance is +$60.

What is the mean of the numbers 2, 4, 6, 8?

The mean is (2 + 4 + 6 + 8) / 4 = 5.

Calculate the result of -7 + 9.

The result is -7 + 9 = 2.

What is -12 ÷ 3?

The result is -4.

If your initial account balance is $250 and you withdraw $75, what is your new balance?

The new balance is $250 - $75 = $175.

Determine the mean hourly change if the hourly changes are: 2, -1, 3, -2 over 4 hours.

Mean hourly change = (2 - 1 + 3 - 2) / 4 = 0.5.

What is -15 - (-5)?

The result is -15 + 5 = -10.