Expressions Substitutions

Find an equivalent expression for
6h - 21.

• (h - 21) + 5h

• 6 + (h - 21)

• 3(3h - 18)

• 3(2 - 7) * h

Tags

CCSS.6.EE.A.4

Find an equivalent expression to 
4(2x + 10y)

• 8(x + 10y)

• 8(x + 5y)

• 8x + 10y

• 8x + 14y

Tags

CCSS.6.EE.A.4

Which is a pair of equal expressions?

• 9y + 6 and 6y + 9

• 7x - 3 and 3 - 7x

• 2y times 4 and 2 times 4y

• 5x - 10 and 5(2 - x)

Tags

CCSS.6.EE.A.4

3 less than a number

• 3 - n

• n - 3

• 3 + n

• n / 3

Tags

CCSS.6.EE.A.2A

Evaluate 8.7j – 9.8k when j = 7 and k = 4.

Mathematical Equivalence

ON

Answer explanation

Evaluate 8.7j – 9.8k when j = 7 and k = 4.

First, substitute for j and k:

8.7(7) - 9.8(4) then multiply.

60.9 - 39.2 and finally subtract

21.7

Tags

CCSS.MATH.CONTENT.7.EE.B.4.a

Evaluate 2x + 5y - 4 when x = 11 and y = 3

Mathematical Equivalence

ON

Tags

CCSS.6.EE.A.2C

Evaluate the expression. Let g = 3 h = 9

4g + 2h + 4

Mathematical Equivalence

ON

Tags

CCSS.6.EE.A.2C

What is the value of 2a - 3b + 6 when a = 2 and b = -5?

Mathematical Equivalence

ON

Tags

CCSS.6.EE.A.2C

The sum of 8 and f

• 8 + f

• 8f

• 8/f

• 8 - f

Tags

CCSS.6.EE.A.2A

Jeff has x number of books. He bought 7 new books. 

• 7x

• x+7

• x/7

• x-7

Tags

CCSS.6.EE.B.6