Eureka Math 1.21

Module 1 Lesson 21

Multiple Choice

What is the next number if you count up by threes starting from 12?

• 6

• 9

• 12

• 15

Multiple Choice

Which of the following complete the pattern?

4, 8, 12, 16, 20, __, 28

• 20

• 24

• 28

• 23

Multiple Select

Which of the following numbers can you reach by counting up by sixes starting from zero?

• 6

• 12

• 18

• 20

Fill in the Blank

Skip Count by 5

5 x 5 = _____

Fill in the Blank

Skip Count by 5

3 x 5 = _____

What is the commutative property?

the FACTORS can be switched around and the product will remain the same

Fill in the Blank

What is the commutative property for

9x8=72

=

Fill in the Blank

What is the commutative property for

5x4=20

=

Fill in the Blank

What is the commutative property for

4x2=

=

What models can we use to solve multiplication and division problems?

Array

Tape Diagram

Circles

Multiple Choice

There are 4 boxes with 6 binders in each one. Three brothers share the binders. How many binders does each brother get?

• 6 binders

• 8 binders

• 12 binders

• 24 binders

Fill in the Blank

Jason earns $6 per week for doing all his chores. On the fifth week, he forgets to take out the trash, so he only earns $4.

How much does Jason earn in 5 weeks?

$

Multiple Choice

Ms. Egeregor buys 27 books for her classroom library. She buys an equal number of fiction, nonfiction, and poetry books. She shelves all of the poetry books first. How many books does Ms. Egeregor have left to shelve?

• 9

• 18

• 21

• 12

Fill in the Blank

Miss Lianto orders 4 packs of 7 markers. After passing out 1 marker to each student in her class, she has

6 left. How many students are in Miss Lianto's class?

Multiple Choice

Which equation matches this array?

• 5 x 3 = 15

• 3 x 5 = 14

• 4 x 3 = 12

• 3 x 4 = 12

Fill in the Blank

Use the Commutative Property of Multiplication to find each missing number.

6 x 4 = 24

4 x 6 = 🟦

Multiple Choice

What number goes in each square?
6 x 4 = 24

• 6

• 8

• 4

• 3

Multiple Choice

Choose the correct equation that matches the strip diagram.

• 3 + 7 + 21

• 3 x 7 = 21

• 3 + 3 + 3 = 9

• 7 x 21 = 147

Fill in the Blank

Use the Commutative Property of Multiplication to find each missing number.

8 x 6 = 48

6 x 8 = 🟦

Multiple Choice

Which equation matches this array?

• 3 x 6 =18

• 6 x 3 = 18

• 3 x 2 = 9

• 2 x 3 = 6

Multiple Choice

Which equation matches this array?

• 5 x 3 = 15
• 4 x 3 = 12
• 3 x 4 = 12
• 3 x 5 = 15

Multiple Choice

There are:

• 4 rows of 4
• 3 rows of 4
• 3 rows of 5
• 4 rows of 3

Multiple Choice

Which repeated addition sentence represents this rectangular array?

• 4+4+4+4=16

• 4+4+4+4+4=20

• 5+5+5+5=20

• 3+3+3+3=12

Multiple Choice

Which repeated addition sentence represents this rectangular array?

• 3+3+3+3=12

• 3+3+3=12

• 3+3+3=9

• 4+4+4+4=16

Multiple Choice

What multiplication sentence does this array show?

• 3 x 5 = 15

• 5 X 5 = 25

• 4 X 5 = 19

• 4 X 5 = 20

Multiple Choice

What multiplication sentence does this array show?

• 4 x 3 = 12

• 2 X 3 = 6

• 3 X 3 = 9

• 3 X 2 = 6

Multiple Choice

Write the multiplication sentence represented by this array.

• 4 x 4 = 15
• 4 x 4 = 12
• 4 x 4 = 16
• 4 x 4 = 15

Multiple Choice

Select the correct number model with the rectangular array

• 4+4+4+4=16

• 2+2+2+2=8

• 2+2=4

• 4+4=8

Multiple Choice

Which equation matches this array?

• 3 x 5 = 15
• 5 x 3 = 15
• 3 x 4 = 12
• 4 x 3 = 12

Multiple Choice

• 5 + 5 = 10

• 5 + 5 + 5 = 15

• 3 + 3 + 3 + 3 + 3 = 15

• 3 + 3 + 3 + 3 = 12

Multiple Choice

• 6 + 6 + 6 + 6 = 24

• 4 + 4 + 4 + 4 = 16

• 6 + 6 + 6 = 18

• 5 + 5 + 5 + 5 = 20

Multiple Choice

What array is this?

• 5 X 6 = 30
• 6 X 4 = 24
• 5 X 5 = 25
• 5 X 4 = 20

Multiple Choice

How many rows are in this array?

• 7

• 28

• 1

• 4