Simplifying Expressions in Pre-Algebra

This pre-algebra lesson focuses on simplifying expressions by combining like terms. The teacher uses a food order example to illustrate the concept, showing how grouping similar items simplifies the order. The lesson progresses to combining like terms with integer coefficients, then with decimals and fractions, and finally with multiple variables. Students are encouraged to practice these skills and reach out for help if needed.

What is the main focus of this lesson?

• Factoring polynomials

• Graphing functions

• Solving equations

• Combining like terms

How many double cheeseburgers with pickles were ordered in the example?

• Five

• Two

• Four

• Three

What is the simplified form of -2C + 3C - 5 - 4C + 7?

• -2C + 3

• 2C - 3

• 3C - 2

• -3C + 2

Which of the following is the best practice for writing the simplified form of an expression?

• Put the constant first

• Put the variable first

• Put the smallest number first

• Put the largest number first

What is the result of combining -3 and 4.5?

• -1.5

• -7.5

• 1.5

• 7.5

What is the common denominator used to combine 1/3 and 1/5?

• 15

• 25

• 10

• 20

What is the simplified form of 4A - 3A - 5B + 2B - 6?

• A + 3B - 6

• A + 3B + 6

• A - 3B - 6

• A - 3B + 6

In the expression 4A - 3A, what is the coefficient of the resulting term?

• 3

• 2

• 1

• 0

What is the simplified form of -5G + 4K + 7.4?

• -5G - 4K - 7.4

• 5G - 4K + 7.4

• -5G + 4K + 7.4

• 5G + 4K - 7.4

What should you do if you have questions about the lesson?

• Reach out for help

• Ignore them

• Ask a friend

• Look up online