**Long Division**

For Fourth Graders

By Victoria Erdman

For Fourth Graders

By Victoria Erdman

Some Definitions

Now We Know the Steps of Division!!! Here's a video to review what we've just learned:

So how is this different from the division we learned last week?

What we're used to: What we'll use now:

16÷4=4

16

4

4

17

5

3

-15

2

Quotient (our answer)

Dividend (number to be divided by another number)

Divisor

(the number

we divide by)

Remainder (what's left over)

Remember...

Step #1: Divide: Look at the First Number of the Dividend

How many times does 3 go into 7?

3 x 2 = 6 and 3 x 3 = 9. 9 is too big, so 3 goes into 7 two times.

78

3

2

Step #2: Multiplication

Multiply 2 x 3, and then put the answer underneath the 7.

78

3

2

6

Steps 3 & 4: Subtraction, Bring Down

Subtract the 6 from the 7 to get 1

Bring down the 8

78

3

2

-6

1

8

Step #5: Repeat "DMSB"!

Divide: 18÷3=6

Multiply: 6 x 3 = 18

Subtract: 18-18=0

Bring Down: There’s no other number after the 8 and there’s no remainder, so we’re done!

78

3

2

-6

18

6

-18

0

Review of Multiplication Facts

Division is the opposite of multiplication, so we need to know our multiplication facts really well!

http://www.multiplication.com/games/play/quick-flash-ii

Coolmath4kids.com (2013). How to do long division. Retrieved from

http://www.coolmath4kids.com/long-division/long-division-lesson-1.html.

Mathandreadinghelp.org (2013). How to teach long division to fourth grade students. Retrieved

from http://mathandreadinghelp.org/how_to_teach_division_to_fourth_grade.html.

The Animated Classroom (2011, Mar 1). The Steps to Long Division. Retrieved from

Walker, A. (2013). Quick Flash II: A fun way to practice the times tables. Retrieved from

http://www.multiplication.com/games/play/quick-flash-ii.

Practice Makes Perfect!

Doing Math Seems Brilliant!

References

17

3

5

Divide

Multiply

Subtract

Bring Down

Doing Math Seems Brilliant!

Divide, Multiply, Subtract, Bring down

-15

2

Quotient (our answer)

Divisor (number by which

the dividend is divided)

Dividend (number to be

divided by another number)

Remainder (what's left over)