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WAYS TO MULTIPLY ANDDIVIDE

Learn modern methods for two-digit multiplication and long division with detailed steps and examples. Improve your math skills today!

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WAYS TO MULTIPLY ANDDIVIDE

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  1. WAYS TO MULTIPLY ANDDIVIDE

  2. Two Digit Multiplication METHOD 1 65 X31=? The first step is to split the numbers into tens and ones.

  3. The answer is 1800+150+60+5= 2015

  4. Method 2 65 X31 65(65 X 1) +1950(65X30) 2015

  5. Division • Division is the process of breaking down numbers into smaller groups. • For example 35 can be broken to 7 groups of 5. • Sometimes we divide numbers that are hard to break down. We need a way to divide those numbers too. Long Division is a way to do that!

  6. Long Division Steps • DAD (Divide) • MOM (Multiply) • SISTER (Subtract) • BROTHER (Bring Down) • ROVER(Repeat / remainder) • ROVER (Repeat/Remainder)

  7. DAD (divide) 14 8 r 4 1. Divide 8 by 6 2. 6 goes into 8 once, so put 1 above the 8. 3. 6 goes into 29 4 times. 4. 6 goes into 52 8 times. 68 9 2 -6 2 9 -2 4 Dad Mom Sister Brother Rover 5 2 -4 8 4

  8. MOM (multiply) 148 r 4 1. After you divide 6 into 8 one time, you will multiple 1 x 6 and write it under the 8. 2. You will do this step after each time you divide. 6 8 9 2 -6 2 9 -2 4 5 2 Dad Mom Sister Brother Rover -4 8 4

  9. SISTER (subtract) 1 4 8 r 4 1. After you multiply 1 x 6 you will subtract 8 - 6 which equals 2. 2. After each time you multiply, you will subtract the two numbers. 6 8 9 2 -6 Dad Mom Sister Brother Rover 2 9 -2 4 5 2 -4 8 4

  10. BROTHER (bring down) 1 4 8 r 4 1. After subtracting, you need to look back to the dividend to see if there are more numbers to bring down. If so move the number next to the subtracted number. 6 8 92 -6 2 9 -2 4 5 2 Dad Mom Sister Brother Rover -4 8 4

  11. ROVER (repeat/remainder) 1 4 8 r 4 1. After you Divide, Multiply, Subtract, and Bring Down, you start the process over until there are no more numbers to bring down. 2. If there is a number other then ‘0’ after the last time you subtract, that number becomes your remainder. 6 8 9 2 -6 2 9 -2 4 5 2 Dad Mom Sister Brother Rover -4 8 4

  12. Thank you

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