Integer and Expressions Review

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power. For example, 2v and 3v are like terms.

Front

How do you combine like terms in the expression 7v + 2 + 12 + 2v?

Back

Combine the coefficients of like terms: 7v + 2v = 9v and 2 + 12 = 14, resulting in 9v + 14.

Front

Back

The result is 5, because dividing two negative numbers gives a positive result.

Front

How do you find the difference in temperature between two locations?

Back

Subtract the lower temperature from the higher temperature. For example, 85 - (-4) = 89 degrees.

Front

What is the expression for the total weight loss if an elephant lost 30 pounds over six months?

Back

The monthly weight loss can be represented as -5 pounds, since 30 pounds lost over 6 months is -30/6 = -5.

Front

What is the result of the expression (4y - 8) + (3y - 9)?

Back

Combine like terms: 4y + 3y = 7y and -8 - 9 = -17, resulting in 7y - 17.

Front

What does it mean for a number to be negative?

Back

A negative number is a number that is less than zero, often representing a loss or a decrease.

Front

What is the significance of zero in integers?

Back

Zero is an integer that represents a neutral value, acting as a boundary between positive and negative integers.