Operations on whole numbers

What is the division expression of this area model?

• 13 x 7

• 91 x 7

• 91 ÷ 7

• 13 ÷ 7

Complete the division problem.

• 14÷2=7
• 14÷7=2
• 14-7=7

Jaylan wrote 27÷3=9 to represent the area model.

Anna wrote 27÷9=3 to represent the area model.

Who is right?

• They are both right because 3 rows of 9 each is 27 total, and 9 rows of 3 each is 27 total.

• They are both right 3 + 9 = 27 and 9 + 3 = 27

• Only Jaylan is right, because 3 rows of 9 is 27 total.

• Only Anna is right, because 9 rows of 3 is 27 total.

Tags

3.oa.2

How could you describe this model?

• 18 counters divided into 3 equal groups

• 6 counters divided into 3 equal groups

Select the correct number model with the rectangular array

• 15 ÷ 3= 5

• 9 ÷ 3= 3

• 12 ÷ 3 = 4

• 30 ÷ 3= 10

 $900\ \div\ 300$  

• -6

• 2

• 3

• 6

 $3\div0=$  

• 0

• can't do

Here I see a tape diagram. This tape diagram is split into _____ equal groups.

If the base ten blocks shown are to be divided into 11 equal groups, what should be done first??

• Exchange 1 ten rod for 10 unit cubes.

• Exchange the hundred flat for 100 unit cubes.

• Exchange the hundred flat for 10 rods.

• Exchange the 4 tens rods for 40 unit cubes.

Which equation is represented below? 
24 - 6 - 6 - 6 - 6 

• 4 x 6 = 24
• 6 + 4 = 24
• 24 ÷ 6 = 4
• 24 ÷ 6 = 6