Lesson 3.6 : The associative property of multiplication

3 x ( 8 x 2 )

• 50

• 49

• 48

• 84

Which number is missing?

6 x (7 x 2 ) = (6 x 7) x ?

• 8

• 2

• 5

• 356

Tom has 3 pages of stamps. Each page has 8 rows with 5 stamps in each row. How many stamps does he have?

• 120

• 1,20

• 210

• 693

Which number makes both number sentences true?

2 x 8 x 4 = 4 x (___ x 2 )

8 x 4 x 6 = ( 6 x 4 ) x ___

• 5

• 46

• 8

• 1

A pet store has 8 aquariums. Each aquarium has only 1 octopus. Each octopus has 9 arms. How many arms are there in all?

• 7,2

• 27

• 72

• 82

What is the product or the answer of multiplication of 5 x 1 x 9?

• 46

• 54

• 75

• 45

Which number is missing?

2 x ( 5 x 1 ) = 1 x ( 5 x ? )

• 5

• 2

• 29

• 7

What is the product of 2 x 1 x 3?

• 6

• 7

• 8

• 100

Is 5 x 5 x 5 equals to 125?

• Yes

• No

• Maybe

• I don’t know

Is 2 x 6 x 8 equals to 271?

• Yes

• No

• Maybe

• I don’t know