Expressions with Unknowns

A letter that represents a number is called a _____.

• variable
• coefficient
• constant
• term

Tags

CCSS.6.EE.A.2B

Which of the following is an algebraic expression?

• 5x + 10 = 18

• 5:8

• 15 + 12

• 3x + 2

Tags

CCSS.6.EE.A.2B

Which of the following is not an expression?

• 5x + 8

• 4(2x + 6)

• 18x = 92

• 4 + 5+ 8

Tags

CCSS.6.EE.A.2B

Which expression is represented in the algebra tiles?

• 6

• -6

• 6x

• 3x + 4x

Tags

CCSS.HSF.BF.A.2

What expression represents this group of tiles?

• 2x + 4

• x + x + 1 + 1

• 2x +1

• x + 4

Tags

CCSS.6.EE.B.6

What expression represents this group of tiles?

• 5x + 6

• 11x

• 11

• 6 - 5x

Tags

CCSS.6.EE.B.6

Evaluate 4y  if       y = 3

• 7
• 12

Tags

CCSS.6.EE.A.2C

Evaluate 2r + 1      if   r = 3

• 6
• 5
• 7
• 8

Tags

CCSS.6.EE.A.2C

3x + 8   if x = 2

• 13
• 14
• 15
• 16

Tags

CCSS.6.EE.A.2C

Evaluate expression if a=3

18 ÷ 2a

• 3

• 6

• 27

• 9

Tags

CCSS.6.EE.A.2C