Topic 1 Review: Variables and Expressions

Write the word phrase as a numerical expression: The difference of 15 and 4

Write the word phrase as a numerical expression: The product of b and 58

• b + 58

• b - 58

• $b\div58$

• $b\ \cdot\ 58$

Evaluate the expression: 15(9-4)

Use pencil and paper to solve.

Evaluate the expression:

 $4\div2+5\left(8\right)$  

Use pencil and paper to solve.

Are the expressions equivalent?

2(35-17) and 70-34

Use pencil and paper to solve.

• Yes, they are equivalent.

• No, they are not equivalent.

What does it mean for expressions to be equivalent?

• They have letters in them

• They are the same value

• They are different numbers

What does the word phrase "more than" mean?

• add

• subtract

• multiply

• divide

What does the word phrase "decreased by" mean?

• add

• subtract

• multiply

• divide

Which of these expressions are algebraic? Select all that apply.

• $15\left(175\div35\right)$

• 4(18x)

• 90 - 5y

• $16\ +\ 42\cdot15$

• a + b + 40

Write the algebraic expression for seventy-one plus c