Arrays
Multiplication/Division
True Equations & Unknown Values
Error Analysis
100

What equation matches the array?


4x3=12

100

Which of the following equations can be used to find the quotient 21 ÷ 3?

A.

B.

C.

D.

A.

100

Select all the true equations.  Choose all that apply.

A.

B.

C.

D.

E.

A.

C.

D.

100

A student says 18 ÷ 3 = 8. What mistake did they make?

18÷3=6

200

Which equation matches the array? Choose all that apply.


A.

B.

C.

D.

E.



C.

D.

200

Each student in the music class needs 3 pencils for their music sheets. If there are 9 students in the class, how many pencils are needed in total?

27

200

What is the value of the unknown number in the equation  ?

6

200

A student divides 16 by 4 and says the answer is 2. Is that correct?  

No, the answer is 4.

300

What multiplication equation matches the array?


5 x 8 =40

300

If you have 24 chairs and make groups of 6, how many groups of chairs will you have?

4

300

What value of n makes the equation below true?

 

45

300

Someone says 24 ÷ 6 = 2. What’s wrong?

24÷6=4

400

What equation matches the array?

5x4=20

400

Solve: 12 ÷ 2 = ?

6

400

Is the equation true or false? Explain

False because  and 3x3=9


400

Fix this mistake: “I shared 20 cookies into groups of 5 and got 2 groups.”

I shared 20 cookies into groups of 5 and got 4 groups.

500

What multiplication and division equations match the array?

5x5=25

500

If 20 pencils are shared equally into 5 groups, how many in each group? 

4

500

What number would make the equation true?

2

500

A student says multiplication and division are not related. Explain why they are wrong.

Multiplication and Division both use equal groups.  Multiplication is counting equal groups.  Division is dividing into equal groups. They are opposites.