Chapter 5.4
Turnarounds
What You'll Learn
Recognize that multiplication can be performed in any order using the commutative property
Understand the relationship between array rows and columns in multiplication facts
Apply turnaround facts to find products by reversing factors
Visualize how rotating an array creates an equivalent multiplication expression
What You'll Practice
1
Writing pairs of matching multiplication facts from arrays
2
Identifying turnaround facts for products up to 99
3
Mentally rotating arrays to find equivalent expressions
Why This Matters
Understanding turnaround facts helps you memorize multiplication tables faster by cutting the number of facts you need to learn in half. This powerful shortcut makes mental math quicker and builds your number sense for algebra and beyond.
This Unit Includes
Practice exercises
Skills
Multiplication
Commutative Property
Arrays
Fact Families
Mental Math
