Turnaround Facts Practice Worksheet
Eureka Math • Grade 3 Module 3 • Lesson 1
Turnaround Facts Practice Worksheet
Explore the Commutative Property of Multiplication with Units of 6, 7, 8, and 9
Name: ______________________
Date: ______________________
Math Concept: The Commutative Property
You can multiply factors in any order and the product stays the same! When you rotate an array, the total does not change. If you know your 2s, 3s, 4s, and 5s, you can use turnaround facts to find answers for 6, 7, 8, and 9!
1
Rotate the Array: Write the Turnaround Facts
Look at each array pair. Fill in the blanks to describe the rows, columns, and multiplication equations.
Array A
____ rows of ____ = ____
____ × ____ = ____
Rotate 90°
Array B (Turned)
____ rows of ____ = ____
____ × ____ = ____
Array A
____ rows of ____ = ____
____ × ____ = ____
Rotate 90°
Array B (Turned)
____ rows of ____ = ____
____ × ____ = ____
2
Use Known Facts: Match the Turnaround Twins
Use your familiar 2s, 3s, 4s, and 5s facts to solve facts for 6, 7, 8, and 9.
a. Known unit: 5
If 5 × 6 = 30,
then 6 × 5 = ______
b. Known unit: 3
If 3 × 8 = 24,
then 8 × 3 = ______
c. Known unit: 4
If 4 × 7 = 28,
then 7 × 4 = ______
d. Known unit: 5
If 5 × 9 = 45,
then 9 × 5 = ______
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Eureka Math • Grade 3 • Module 3 • Lesson 1
Turnaround Facts Practice Worksheet (Continued)
Name: ______________________
3
Draw the Arrays & State the Turnaround
Draw dots to model each multiplication fact. Then write the product.
3a. Draw 3 rows of 7: 3 × 7 = ______
Turnaround Fact: 7 × 3 = ______
3b. Draw 4 rows of 8: 4 × 8 = ______
Turnaround Fact: 8 × 4 = ______
4
Word Problem Detectives (Read, Draw, Write)
a. Maya buys 6 packs of colored pencils. Each pack has 4 pencils. Leo buys 4 packs of colored pencils. Each pack has 6 pencils. Do Maya and Leo have the same number of pencils? Explain using multiplication sentences.
Draw an array or tape diagram:
Write your number sentences & answer:
Maya: ____________________________
Leo: ____________________________
Do they have the same? ________________
b. Marcus is trying to solve 7 × 5. He forgot his 7s facts, but he knows his 5s facts really well! How can Marcus use turnaround facts to find the answer?
What turnaround equation should Marcus solve? ______ × ______ = ______
Explain how knowing this helps Marcus:
Exit Reflection: The Turnaround Rule
A classmate says: "If I know that 3 × 9 = 27, then I automatically know what 9 × 3 equals." Is your classmate correct?
Yes, they are correct No, they are incorrect | Because ____________________________________
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