Integer Operations Flashcard

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

What is the additive inverse of a number?

Back

The additive inverse of a number is the value that, when added to the original number, results in zero. For example, the additive inverse of -3 is 3.

Front

How do you calculate the average of a set of numbers?

Back

To calculate the average, add all the numbers together and then divide by the total count of the numbers.

Front

What does it mean to lose points in a game?

Back

Losing points in a game means subtracting a certain number of points from your total score.

Front

What does it mean to gain points in a game?

Back

Gaining points in a game means adding a certain number of points to your total score.

Front

How do you represent a score change mathematically?

Back

A score change can be represented using addition and subtraction. For example, if you start with 10 points, lose 20, and gain 45, it can be shown as 10 - 20 + 45.

Front

What is the result of adding a positive integer and a negative integer?

Back

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

Front

What is the significance of zero in integer operations?

Back

Zero is the additive identity, meaning any number added to zero remains unchanged. It also represents a neutral point on the number line.

Front

How do you find the total number of stops if you stop every few units?

Back

To find the total number of stops, divide the total distance by the number of units per stop. For example, if you walk 21 flights and stop every 3 flights, you would stop 21 ÷ 3 = 7 times.

Front

What is the formula for calculating the average of negative temperatures?

Back

The formula is the same as for positive numbers: add all the temperatures together and divide by the number of temperatures. For example, for -5°, -7°, -2°, 2°, and -3°, the average is (-5 - 7 - 2 + 2 - 3) ÷ 5.