UNIT 1 • Part 2 REVIEW EXTRA HELP

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor (GCF) is the largest positive integer that divides all the numbers in a given set without leaving a remainder.

Front

How do you find the GCF of two numbers, for example, 36 and 60?

Back

To find the GCF, list the factors of each number: Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36; Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60. The GCF is 12.

Front

What does the expression '5 times a number plus 13' look like in algebraic form?

Back

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more numbers.

Front

How do you find the LCM of 5 and 7?

Back

List the multiples of each number: Multiples of 5: 5, 10, 15, 20, 25, 30, 35, ...; Multiples of 7: 7, 14, 21, 28, 35, ...; The LCM is 35.

Front

What is the formula for the area of a triangle?

Back

The area (A) of a triangle is given by the formula A = ½ * base * height.

Front

If a triangle has a base of 6 inches and a height of 5 inches, what is its area?

Back

Using the formula A = ½ * base * height, the area is A = ½ * 6 * 5 = 15 square inches.

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

What is the process of distributing in algebra?

Back

Distributing involves multiplying a single term by each term inside a set of parentheses.