Presentation Transcript
Long Division: Long Division by Monica Yuskaitis
Long Division: Long Division Long division is as simple as memorizing the people in this family.
Dad Mom Sister Brother Rover
Long Division: Long Division Each person represents a step in the long division process.
Dad Mom Sister Brother Rover 1. Divide 2. Multiply 3. Subtract 4. Bring down 5. Repeat or
Remainder
Step 1 in Long Division: Step 1 in Long Division Divide 2 into first number in the dividend. 2 ) 9 4 7 Think how many 2’s will fit into 9. 4 How many 2’s will go into 9? Write that number directly above the number you divided into. Dad 1. Divide
Step 2 in Long Division: Step 2 in Long Division Multiply the divisor times the first number in the quotient. 2 ) 9 4 7 Write your answer directly under the 9 or the number you just divided into. 4 2 x 4 = 8 2. Multiply Mom 8
Step 3 in Long Division: Step 3 in Long Division Draw a line under the 8. 2 ) 9 4 7 Write a subtraction sign next to the 8. 4 3. Subtract 8 Sister Subtract 8 from 9. Write your answer directly below the 8.
1
Step 4 in Long Division: Step 4 in Long Division Go to the next number in the dividend to the right of the 9. 2 ) 9 4 7 Write an arrow under the 4. 4 4. Bring down 8 Bring the 4 down next to the 1. 1 Brother 4
Step 5 in Long Division: Step 5 in Long Division This is where you decide whether you repeat the 5 steps of division. 2 ) 9 4 7 If your divisor can divide into your new number, 14, or if you have numbers in the dividend that have not been brought down, you repeat the 5 steps of division. 4 5. Repeat or Remainder 8 1 4
Rover
Step 1 in Long Division: Step 1 in Long Division Divide 2 into your new number, 14. 2 ) 9 4 7 Place your answer directly above the 4 in your quotient. 4 1. Divide 8 1 4
Dad 7
Step 2 in Long Division: Step 2 in Long Division Multiply your divisor, 2, with your new number in the quotient, 7. 2 ) 9 4 7 Place your answer directly under the 14. 4 2. Multiply 8 1 4
7 Mom 1
4
Step 3 in Long Division: Step 3 in Long Division Draw a line under the bottom 14. 2 ) 9 4 7 Draw a subtraction sign. 4 3. Subtract 8 1 4
7 1
4
Sister Subtract andamp; place answer under the line. 0
Step 4 in Long Division: Step 4 in Long Division Put an arrow under
the next number, 7,
in the dividend. 2 ) 9 4 7 Bring the 7 down next to the 0. 4 4. Bring down 8 1 4
7 1
4
0 Brother 7
Step 5 in Long Division: Step 5 in Long Division If the 2 will divide into your new number, 7, then repeat the steps of division. 2 ) 9 4 7 4 5. Repeat or Remainder 8 1 4
7 1
4
0
7 Rover
Step 1 in Long Division: Step 1 in Long Division Divide your divisor, 2, into your new number, 7. 2 ) 9 4 7 4 1. Divide 8 1 4
7 1
4
0 7 Dad Place your answer in the quotient next to the 7.
3
Step 2 in Long Division: Step 2 in Long Division Multiply your divisor, 2, by your new number in the quotient, 3. 2 ) 9 4 7 4 2. Multiply 8 1 4
7 1
4
0 7 Place your answer under the number you brought down, 7.
3 Mom 6
Step 3 in Long Division: Step 3 in Long Division Draw a line under the number 6. 2 ) 9 4 7 4 3. Subtract 8 1 4
7 1
4
0 7 Place your subtraction sign.
3 6 Sister Subtract andamp; put your answer directly under the 6. 1
Step 4 in Long Division: Step 4 in Long Division Look at your dividend to see if there are any more numbers to bring down. 2 ) 9 4 7 4 4. Bring down 8 1 4
7 1
4
0 7 3 6 If not, move to step 5. 1 Brother
Step 5 in Long Division: Step 5 in Long Division Since there are no more numbers to bring down andamp; 2 will not divide into 1, you do not repeat the steps of division. 2 ) 9 4 7 4 5. Repeat or Remainder 8 1 4
7 1
4
0 7 3 6 The number left over, 1, becomes the remainder. 1 Rover R1
Slide19: 2 ) 9 4 7 4 8 1 4
7 1
4
0
7 3 6 1 R1 You did it! You’re so
smart! You’re
awesome! Cool
Dude! Wolf!
Credits: Credits Written by Monica Yuskaitis
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