Understanding Addition and Multiplication Properties

In this lesson, students learn to write expressions using addition and multiplication, understand equivalent expressions, and demonstrate these concepts using tape diagrams and number lines. The lesson also covers determining the truth of equations using mathematical properties. Students are assigned homework to reinforce these concepts.

What is one way to express three boxes using addition?

• 3 + 3

• 3 x 2

• 3 + 3 + 3

• 3 x 3

How can you express eight boxes using multiplication?

• 8 + 2

• 8 x 3

• 8 x 2

• 8 + 8

What is the equivalent multiplication expression for 6 + 6?

• 2 x 6

• 6 x 2

• 3 x 6

• 6 x 3

How many times is the number three added in the expression 3 + 3 + 3 + 3 + 3 + 3?

• Six

• Five

• Four

• Seven

What is the multiplication equivalent of h + h + h + h + h?

• 5h

• 6h

• 3h

• 4h

How can Roberto demonstrate 3 x 2 on a number line?

• Start at 0, add 3 three times

• Start at 0, add 3 two times

• Start at 0, add 2 three times

• Start at 0, add 2 two times

What is the result of 6g - 6g?

• 6g

• g

• 12g

• 0

Which property is used when 2f - 4e + 4e equals 2f?

• Subtraction Identity

• Zero Property

• Addition Property

• Multiplication Property

What does the equation x + 6g - 6g = x demonstrate?

• Zero Property

• Addition Property

• Multiplication Property

• Subtraction Identity

What task are students asked to complete on their own?

• Determine truth of equations

• Solve for variables

• Demonstrate multiplication on a number line

• Write expressions using tape diagrams