Transcript 2 Digit Division - Lexington School District One

Long Division
With 2 Digit Divisor
by Monica Yuskaitis
Long Division With 2 Digit
Divisor
• Use our family to help you remember the
steps in long division.
Dad
Mom
Sister
Rover
Brother
2 Digit Long Division
• Each person represents a step in the long
division process.
3. Subtract
1. Divide
Sister
4. Bring down
Dad
Brother
2. Multiply
5. Repeat or
Remainder
Mom
Rover
Step 1 in 2 Digit Long Division
1. Divide
•
•
•
•
4
2 1) 9 4 8
Dad
Divide 21 into first
number in the dividend.
How many
21 will not go into 9 so
20’s will go
you look at 94.
into
90?
Round off 21 and 94 in
your head.
Now divide 20 into 90 &
put your answer above the 4.
Step 2 in 2 Digit Long Division
4
2. Multiply
2 1) 9 4 8
Mom
• Multiply the divisor
times the first number
in your quotient.
• Write your answer
directly under the
94 or the number
you just divided into.
8 4
21
x4
84
Step 3 in 2 Digit Long Division
4
3. Subtract
Sister
• Draw a line under the 84.
• Write a subtraction sign
next to the 84.
2 1) 9 4 8
8 4
1 0
• Subtract 84 from 94.
• Write your answer directly below the 84.
Step 4 in 2 Digit Long Division
Brother
4. Bring
down
4
2 1) 9 4 8
• Go to the next number in
the dividend to the right of
the 4.
• Write an arrow under that
number.
• Bring the 8 down next to the 10.
84
1 08
Step 5 in 2 Digit Long Division
5. Repeat or
Remainder
4
2 1) 9 4 8
Rover
• This is where you decide
whether you repeat the
5 steps of division.
• If your divisor can divide into your new number,
108, or if you have numbers in the dividend
that have not been brought down, you repeat
the 5 steps of division.
84
1 08
Step 1 in 2 Digit Long Division
45
1. Divide
2 1) 9 4 8
Dad
• Divide 21 into your
new number, 108.
• Round 21 and 108 off
in your head.
• Divide 20 into 110
• Place your answer directly
above the 8 in your quotient.
84
1 08
Step 2 in 2 Digit Long Division
45
2. Multiply
Mom
2 1) 9 4 8
• Multiply your divisor, 21,
with your new number
in the quotient, 5.
• Place your answer
directly under the
108.
84
1 08
1 05
Step 3 in 2 Digit Long Division
3. Subtract
Sister
• 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
Step 4 in 2 Digit Long Division
4. Bring
down
Brother
• Since there is nothing to
bring down, go to step
five.
45
2 1) 9 4 8
84
1 08
1 05
3
Step 5 in 2 Digit Long Division
5. Repeat or
Remainder
Rover
4 5R3
2 1) 9 4 8
• If the 21 will not divide
into your new number, 3, &
there is nothing to bring
down, you are done.
• Write your left over 3 as the
remainder next to the 5.
84
1 08
1 05
3
Super work!
4 5R3
Way to
go!
2 1) 9 4 8
I’m proud
of you!
84
1 08
1 05
3
You’re
hot!
Bow-wow!
Credits
Written by Monica Yuskaitis
Illustrations by:
• Corel Gallery by Corel Corp.
• Broderbund Co. Art T/Maker Co.
Copying of this software must be approved by
Monica Yuskaitis, Walter White Elementary, CUSD
This software may only be used in
Ceres Unified School District.