Math Expressions Curriculum

Simplify expression

-5x - 2 + 4x - 8

• -20x + 6

• -20x + 10

• -x - 10

• -9x - 6

Simplify expression

7a + 9 - 5a + 10

• 12a + 19

• 2a + 19

• 16a - 15a

• 12a - 19

Simplify expression

m + 10 + 4

• m + 40

• m + 18

• m + 14

• 14m

Simplify expression

-3a - 4a

• -1a

• -7a

• 1a

• 7a

Simplify expression

10b - 9 + 10

• b - 9

• 10b + 1

• 10b - 19

• 90b - 100

Simplify expression

-10 - 8k + 6k + 1

• -11 - 14k

• 11 + 14k

• -9 - 2k

• -9 + 2k

3x − 5y

• Expression

• Equation

6y − 2z

• Expression

• Equation

Emma is planning a party and needs to buy some party candies. She has $25 to spend. Each candy costs $5, and she wants to buy n candies. Write an algebraic number to represent the amount of money Emma has after buying the candies. Is this an expression or an equation?

• It's an Expression
  25 - 5n

• It's an Equation
  25 = 5n

• It's an Equation
  25 - 5n = 0

• It's an Expression
  5n

A student has a test where the sum of her math and science scores is 180 points. If the math score is m and the science score is s, write an algebraic number that represents this situation. Is this an expression or an equation?

• It's an Expression
  m + s

• It's an Equation
  m + s = 180

• It's an Expression
  m + s + 180

• It's an Expression
  180 − m − s