Long Division Tutorial
Download as PPTX, PDF1 like284 views
This document explains the steps for long division through a silly mnemonic device "Do Monkeys Sniff Brown Rats?" and works through a sample problem of dividing 16714 by 14. It breaks down the steps as: D(ivide), M(ultiply), S(ubtract), B(ring down), and R(epeat) or Remainder. The problem shows dividing 16714 by 14, going through each step of dividing, multiplying, subtracting, bringing down remaining digits, and repeating the process until reaching a remainder of 13.
Long Division Tutorial
- 2. We are going to divide. It is easy to do, as long as you follow the steps. Division is like a recipe. The steps must be followed precisely and in order for the problem to come out correctly. The following silly sentence will help you remember the division steps: Do Monkeys Sniff Brown Rats? D = Divide M = Multiply S = Subtract B = Bring down R = Repeat or Remainder
- 3. Here is a division problem to work out: 16714
- 4. Step 1 is Divide We need to decide how many times 14 will go into 16. It will go 1 time. 1 1614
- 5. Step 2 Multiply We need to multiply 14 x 1. 1 1614 14
- 6. The next step is to Subtract. 1 1614 - 14 2
- 7. Step 3 is to Check. We need to make sure that the answer to our subtraction problem is smaller than our divisor, 14. 1 1614 - 14 2 2 is smaller than 14, so we can go to the Next step.
- 8. The next step is to Bring Down. 1 1614 - 14 27 7
- 9. The next step is to Repeat. We go back to step one and Divide. We need to decide how many times 14 will go into 27. 14 x 2 = 28 and that is bigger than 27. So we will use 14 x 1 = 14.
- 10. 1 1614 14 7 1 27
- 11. The next step is to Multiply. 1 1614 1 7 - 14 27 14
- 12. The next step is to Subtract. 1 1614 1 - 14 7 27 - 14 13
- 13. The next step is to Check. We need to be sure that the answer to our subtraction problem is less than the divisor 14. 1 1614 - 14 27 - 14 13 1 Since it is, we can go on to the next step. 7
- 14. The next step is to Bring Down. Since there are no numbers to bring down, we do not repeat, but use the 13 as our Remainder. 1 1614 1 R 13 - 14 27 7 - 14 13
- 15. WooHoo – You are now a Math Genius - Long Division isn’t easy and you are beginning to accomplish it!