Algebra: Finding the Unknown

Algebra: Finding the Unknown

Multiple Choice

Which equation represents a value that is greater than the number of triangles in this array?

• 6 x 3

• 5 x 5

• 4 x 4

• 5 x 4

Multiple Choice

Which unknown value is the largest?

• 63 x 50 = ?

• 50 x 73 = ?

• 65 x 50 = ?

Multiple Choice

Which unknown value is the largest?

• 23 x 8 = ?

• 8 x 18 = ?

• 8 x 28 = ?

Multiple Choice

How many equal groups of cupcakes are in this model?

• 4

• 2

• 8

Multiple Choice

Which equation represents this model?

• 2 x 2 = 4

• 8 ÷ 4 = 4

• 4 ÷ 2 = 2

• 8 ÷ 2 = 4

Fill in the Blank

How many equal rows of stars are in this array?

Multiple Select

Which of the following equations contains a variable? Check all that apply.

• 40 + b = 96

• 6 x 3 = 18

• 580 ÷ ? = 2

• 18 ⋅ 8 = x

Fill in the Blank

What is the value of y in the following equation?

15 ÷ y = 5

Fill in the Blank

Solve for x.

3 ⋅ x = 6

x = ?

Fill in the Blank

Solve for x.

3 ⋅ x = 6

x = ?

Multiple Choice

Elsa had 356 guests at her feast. Each guest ate 3 bread rolls.

The variable b represents the total number of rolls Elsa's guests ate. Which equation helps you solve for b?

• 356 ÷ 3 = b

• 356 x 3 = b

Multiple Choice

Sven decided to share some carrots with 8 of his friends. Each friend received 12 carrots.

The variable c stands for the total number of carrots Sven gave away. Which equation can you use to find c?

• 12 ⋅ c = 96

• 12 ÷ 8 = c

• 12 x 8 = c

• c ÷ 8 = 96