Introduction to Division
In this section, I will be able to divide a double digit number by a single digit number by using strategies such as:
- Fact families (thinking of multiplication)
- Creating Groups
- Creating Arrays
- Repeated Subtraction
- Using Number Lines
What are some ways that I can divide?
There are many ways that we can divide a number. The following section will show you a few different ways. For this example, let's use the following division question:
28 ÷ 4 = ???
28 ÷ 4 = ???
Fact Families: Try to think of a multiplication question that involves the 2 numbers you know.
Arrays: Make 4 rows and place 28 items in one at a time so that each row has an equal amount of items.
|
Making Groups: Take the 28 items and place them into 4 EQUAL groups.
Repeated Subtraction: Start at 28 and subtract 4. Keep subtracting 4 until you get to 0. How many times did you do it?
|
Creating a number line: Make 28 lines and skip count by 4. How many times did you have to skip count?
|
|
|
Practice Questions
Choose one of the following questions to complete:
1) Using related multiplication facts, explain how you know the quotient of 42 divided by 7.
2) There are 25 students in our class this year. Mr.Gehrig wants to divide the class into groups of 5. How many students will be in each group? Solve this problem in as many ways as you can.
3) List 5 fact families that ONLY have 2 related facts.
Choose one of the following questions to complete:
1) Using related multiplication facts, explain how you know the quotient of 42 divided by 7.
2) There are 25 students in our class this year. Mr.Gehrig wants to divide the class into groups of 5. How many students will be in each group? Solve this problem in as many ways as you can.
3) List 5 fact families that ONLY have 2 related facts.