short division 1
TRANSCRIPT
Short DivisionWith 2 Digit Divisor
by Paty Carranza
Short Division With 2 Digit Divisor
• Use our family to help you remember the steps in short division.
Dad Mom Sister Brother
Rover
2 Digit Short Division• Each person represents a step in the short
division process.
Dad
Mom
Sister
Brother
Rover
1. Divide
2. Multiply
3. Subtract
4. Bring down
5. Repeat orRemainder
Step 1 in 2 Digit Short Division
• Divide 21 into first number in the dividend.
2 1) 9 4 8
• 21 will not go into 9 so you look at 94.
4
How many 20’s will go into 90?
Dad
1. Divide
• Now divide 20 into 90 & put your answer above the 4.
• Round off 21 and 94 in your head.
Step 2 in 2 Digit Short Division
• Multiply the divisor times the first number in your quotient.
• Write your answer directly under the 94 or the number you just divided into.
21x484
2. Multiply
Mom 2 1) 9 4 84
8 4
Step 3 in 2 Digit Short Division
3. Subtract
Sister
• Subtract 84 from 94 mentally.
• Write your answer directly below the 94.
12 1) 9 4 8
4
0
Step 4 in 2 Digit Short Division
• Go to the next number in the dividend to the right of the 4.
4. Bring down
• Bring the 8 down next to the 10.
Brother
1
2 1) 9 4 84
0 8
Step 5 in 2 Digit Short Division
• 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.
5. Repeat or Remainder
Rover
1
2 1) 9 4 84
0 8
Step 1 in 2 Digit Short Division
• Divide 21 into your new number, 108.
• Place your answer directly above the 8 in your quotient.
1. Divide
Dad
1
2 1) 9 4 84
0 8• Round 21 and 108 off in your head.• Divide 20 into 110
5
Step 2 in 2 Digit Short Division
• Multiply your divisor, 21, with your new number in the quotient, 5.
• And it will be 105
2. Multiply
Mom
1
2 1) 9 4 84
0 8
5
Step 3 in 2 Digit Short Division
3. Subtract
Sister
• Subtract 105 from 108 mentally.
3
2 1) 9 4 84
0 8
5
1
Step 4 in 2 Digit Short Division
• Since there is nothing to bring down, go to step five.
4. Bring downBrother
3
2 1) 9 4 84
0 8
5
1
Step 5 in 2 Digit Short Division
• If the 21 will not divide into your new number, 3, & there is nothing to bring down, you are done.
5. Repeat or Remainder
Rover
381
2 1) 9 4 8
0
4 5
• Write your left over 3 as the remainder next to the 5.
R3
Super work!
I’m proudof you!
Way to go!
You’re hot!
Bow-wow!38
2 1) 9 4 8
0
4 5R3
1
Short DivisionWith 2 Digit Divisor
• For classwork answer book pages 152-153 problems 10 to 17 and mixed review problems 42 to 45
• Homework answer workbook page 42