Exploring Unit 6 Lesson 3 in Grade 7 Mathematics

What is the result of applying the distributive property to the expression 7(2 - 3n)?

• 7 - 21n

• 14 - 3n

• 7 - 3n

• 14 - 21n

Which property allows you to move the order of multiplication in an expression?

• Associative Property

• Distributive Property

• Identity Property

• Commutative Property

Which tape diagram matches the equation 2x + 5 = 19?

• D

• C

• B

• A

What is the correct equation for a tape diagram showing 2 groups of (x + 5) equaling 19?

• 2(x + 5) = 19

• 2 + 5x = 19

• 2x + 5 = 19

• 5(x + 2) = 19

How would you categorize the equation 19 = 5 + 2x?

• By subtraction

• By addition

• By multiplication

• By parentheses

What is the first step in solving the equation 3x + 18 = 114?

• Divide by 3

• Multiply by 3

• Add 18

• Subtract 18

In the equation 114 = 3(y + 18), what is the value of y after dividing both sides by 3?

• 38

• 20

• 18

• 32

What is the total sum for each row, column, and diagonal in a magic square if one row sums to 9?

• 12

• 9

• 6

• 15

How many equal parts are there in a tape diagram representing the equation 5(x + 1) = 20?

• 4

• 5

• 7

• 6

If a car travels 135 miles in 3 hours, what is its speed in miles per hour?

• 50 mph

• 45 mph

• 40 mph

• 35 mph