Download 1 - Cloudfront.net

Division
Dividing 4 Digits by 2 Digits
1
How to Divide
2 Digits into
3 Digits
Copyright © 2013 by Monica
Yuskaitis
2
Division
What does each member of this family
represent in long division?
1. Divide
3. Subtract
4. Bring down
2. Multiply
5. Repeat or
Remainder
3
Step 1 in 2 Digit Long Division
1. Divide
4
 Divide 21 into 1st
number in the dividend.
 21 will not go into 9 so
you look at 94.
How many
20’s will go
 Use mental math to round
into 90?
21 and 94.
 Now divide 20 into 90 & put
your answer above the 4.
2 1) 9 4 8
4
Step 2 in 2 Digit Long Division
2. Multiply
4
 Multiply the divisor times
the first number in your 2 1) 9 4 8
quotient.
84
 Write your answer directly
under the 94 or the number
you just divided into.
4 x 21=84
5
Step 3 in 2 Digit Long Division
3. Subtract
 Draw a line under
the 84.
 Write a subtraction sign
next to the 84.
 Subtract 84 from 94.
4
2 1) 9 4 8
84
10
 Write your answer directly below the 84.
6
Step 4 in 2 Digit Long Division
4. Bring down
4
 Go to the next number 2 1) 9 4 8
in the dividend to the
8
4
right of the 4.
1
0
8
 Write an arrow under that
number.
 Bring the 8 down next to the 10.
7
Step 5 in 2 Digit Long Division
5. Repeat or Remainder
 Decide if you repeat the
5 steps of division.
4
2 1) 9 4 8
84
1 08
 If your divisor (21) can divide into your new
number (108), or if you have numbers that
have not been brought down, you repeat the 5
steps of division.
8
Step 1 in 2 Digit Long Division
1. Divide
 Divide 21 into your
new number, 108.
 Use mental math to
round 21 and 108.
 Divide 20 into 110
45
2 1) 9 4 8
84
1 08
 Place your answer directly above the 8 in your
quotient.
9
Step 2 in 2 Digit Long Division
2. Multiply
4
5
 Multiply your divisor,
21, with your new
2
1)
9
4
8
number in the quotient,
84
5.
1
0
8
 Place your answer directly
1 05
under the 108.
10
Step 3 in 2 Digit Long Division
3. Subtract
 Draw a line under the
bottom number, 105.
 Draw a subtraction
sign.
 Subtract & place answer
under the line.
45
2 1) 9 4 8
84
1 08
1 05
3
11
Step 4 in 2 Digit Long Division
4. Bring down
 Since there is nothing to
bring down, go to step
five.
45
2 1) 9 4 8
84
1 08
1 05
3
12
Step 5 in 2 Digit Long Division
5. Repeat or Remainder
4 5 R3
 If the 21 will not divide 2 1) 9 4 8
into your new number,
3, & there is nothing to
8
4
bring down, you are
108
done.
105
 Write your left over 3 as
the remainder next to the
3
5.
13
2 Digit Long Division
45
2 1) 9 4 8
84
108
105
3
3
__
1
__
=
21
7
 Write your
remainder in the
form of a fractions
and simplify
14
Solve this problem
121
31 )3 7 5 9
-3 1
65
- 62
39
- 31
8
8
__
31
15
Solve this problem
360
19 )6 8 4 3
-5 7
114
-1 1 4
03
0
3
3
__
19
16
Solve this problem
101
18 )1 8 2 1
-1 8
02
- 0
1211
- 18
3
3 __
1
__
=
18 6
17