Integers & Absolute Value

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 absolute value?

Back

Absolute value is the distance of a number from zero on the number line, regardless of direction. It is always a non-negative number.

Front

How do you calculate the absolute value of a number?

Back

To calculate the absolute value, remove any negative sign. For example, |–4| = 4 and |5| = 5.

Front

What is the absolute value of -7?

Back

The absolute value of -7 is 7.

Front

What does it mean to be below sea level in terms of integers?

Back

Being below sea level is represented by negative integers. For example, -1,440 feet means 1,440 feet below sea level.

Front

If a number is decreased by 5, how do you express this mathematically?

Back

You express this as x - 5, where x is the original number.

Front

What is the result of |–3| + |4|?

Back

The result is 3 + 4 = 7.

Front

How do you find a percentage of a number?

Back

To find a percentage, multiply the number by the percentage (as a decimal). For example, 25% of 200 is 200 * 0.25 = 50.

Front

What is 35% off of $7.40?

Back

To find 35% off, calculate 7.40 * 0.35 = 2.59, then subtract from the original price: 7.40 - 2.59 = 4.81.

Front

What is the sale price of an item originally priced at $94.99 with a 25% discount?

Back

The sale price is $94.99 - (94.99 * 0.25) = $71.24.