Page 122 - NUMINO TB_3A
P. 122
056_G3U12_G4U19_˙—» ¿º 2011.3.22 9:5 PM ˘ ` 111 PDF_In 2540DPI 150LPI T
Discuss what you found from the previous problem.
2 . Learn about the Commutative Property of Multiplication.
Commutative Property of Multiplication
The order in which the factors are multiplied does not
change the product.
3 7 = 21 7 3 = 21
a. 12 cans of juice are arranged in 4 rows.
How many cans are in each row?
b. 24 students are standing in 6 lines.
How many students are in each line?
12. Beat the Calculator! 111
Discuss what you found from the previous problem.
2 . Learn about the Commutative Property of Multiplication.
Commutative Property of Multiplication
The order in which the factors are multiplied does not
change the product.
3 7 = 21 7 3 = 21
a. 12 cans of juice are arranged in 4 rows.
How many cans are in each row?
b. 24 students are standing in 6 lines.
How many students are in each line?
12. Beat the Calculator! 111