Groups of ___
Equal Groups
Repeated Subtraction
Arrays
Vocabulary
100
Show 14 ÷ 2 = 7 using equal groups of 2.
Answer should have 7 groups with 2 items in each group.
100
Show 18 ÷ 2 = 9 using 2 equal groups.
Answer should have 2 groups with 9 items in each group.
100
Show 8 ÷ 2 = 4 using repeated subtraction.
8 - 2 = 6
6 - 2 = 4
4 - 2 = 2
2 - 2 = 0
(four total subtraction sentences, so 8 ÷ 2 = 4)
100

Show 6 ÷ 3 = 2 using an array.

Array should show 3 rows and 2 columns.

100

An arrangement of items into equal rows and columns

Array

200
Show 24 ÷ 8 = 3 using equal groups of 8.
Answer should have 3 groups with 8 items in each group.
200
Show 24 ÷ 4 = 6 using 4 equal groups.
Answer should have 4 groups with 6 items in each group.
200
Show 10 ÷ 5 = 2 using repeated subtraction.
10 - 5 = 5
5 - 5 = 0
(two total subtraction sentences, so 10 ÷ 5 = 2)
200

Show 16 ÷ 4 = 4 using an array.

Array should show 4 rows and 4 columns.

200

A way to subtract the same number over and over again until you reach zero

Repeated subtraction

300
Show 27 ÷ 3 = 9 using equal groups of 3.
Answer should have 9 groups with 3 items in each group.
300
Show 28 ÷ 7 = 4 using 7 equal groups.
Answer should have 7 groups with 4 items in each group.
300
Show 21 ÷ 7 = 3 using repeated subtraction.
21 - 7 = 14
14 - 7 = 7
7 - 7 = 0
(three total subtraction sentences, so 21 ÷ 7 = 3)
300

Show 25 ÷ 5 = 5 using an array.

Array should show 5 rows and 5 columns.

300

A way to divide by sharing one object at a time in each group until all the objects are gone

Partition OR Equal Groups

400
Show 32 ÷ 8 = ? using equal groups of 8.
Answer should have 4 groups with 8 items in each group.
400
Show 30 ÷ 6 = ? using 6 equal groups.
Answer should have 6 groups with 5 items in each group.
400

Show 35 ÷ 5 = ? using repeated subtraction.

35 - 5 = 30

30 - 5 = 25

25 - 5 = 20

20 - 5 = 15

15 - 5 = 10

10 - 5 = 5

5 - 5 = 0

(seven total subtraction sentences, so 35 ÷ 5 = 7)

400

Show 12 ÷ 2 = ? using an array.

Array should show 2 rows and 6 columns.

400

Operations that undo each other are called _______.

(ex: addition and subtraction, multiplication and division)

Inverse Operations

500
Lela had 36 pieces of Halloween candy left over and wanted to give 9 pieces of candy to each of her friends. How many friends will get candy?
36 ÷ 9 = 4, so 4 friends will get candy.
500

There are 24 pieces of candy. 6 friends put the candy into equal groups to share. How many pieces of candy will each friend get?

24 ÷ 6 = 4, so they will each have 4 pieces of candy.

500

Jacob and 3 friends shared 12 pencils. How many pencils will each friend get?

(you don't have to show repeated subtraction, just solve the problem using any strategy you would like)

12 ÷ 4 = 3 pencils


500

20 kids were playing outside at recess. They make 4 teams to play a new game. How many kids will be on each team?

20 ÷ 4 = 5 kids

500

The answer to a division problem

Quotient