Basic Math

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 does it mean to be below sea level?

Back

Being below sea level means that a location is at a depth lower than the average level of the ocean. This is represented by negative integers.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. Examples include 2, 3, 5, and 7.

Front

How do you express a debt as an integer?

Back

A debt is expressed as a negative integer. For example, a debt of $50 is represented as -50.

Front

What is the value of 0 in terms of integers?

Back

0 is an integer that represents the neutral point between positive and negative numbers.

Front

How do you evaluate the expression 57 - 32 + 3^2?

Back

First, calculate 3^2 = 9. Then, evaluate 57 - 32 + 9 = 34.

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 larger, the result is positive; if the negative integer is larger, the result is negative.

Front

What is the absolute value of an integer?

Back

The absolute value of an integer is its distance from zero on the number line, regardless of direction. For example, the absolute value of -5 is 5.

Front

How do you represent a temperature below freezing?

Back

Temperatures below freezing are represented by negative integers. For example, -5 degrees Celsius.

Front

What is the sum of two negative integers?

Back

The sum of two negative integers is always a negative integer. For example, -3 + -2 = -5.