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Partial Quotients A Division Algorithm Created by Rina Iati, South Western School District, Hanover, PA.

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Presentation on theme: "Partial Quotients A Division Algorithm Created by Rina Iati, South Western School District, Hanover, PA."— Presentation transcript:

1 Partial Quotients A Division Algorithm Created by Rina Iati, South Western School District, Hanover, PA

2 The Partial Quotients Algorithm uses a series of “at least, but less than” estimates of how many b’s in a. You might begin with multiples of 10 – they’re easiest There are at least ten 12’s in 158 (10 x 12=120), but fewer than twenty. (20 x 12 = 240) 10 – 1st guess Subtract There are more than three (3 x 12 = 36), but fewer than four (4 x 12 = 48). Record 3 as the next guess 3 – 2 nd guess Sum of guesses Subtract Since 2 is less than 12, you can stop estimating. The final result is the sum of the guesses ( = 13) plus what is left over (remainder of 2 ) Created by Rina Iati, South Western School District, Hanover, PA

3 Let’s try another one 36 7, – 1st guess - 3,600 4,291 Subtract 100 – 2 nd guess - 3, R7 Sum of guesses Subtract – 3 rd guess – 4th guess Created by Rina Iati, South Western School District, Hanover, PA

4 Now do this one on your own. 43 8, – 1st guess - 4, Subtract 90 – 2 nd guess R 15 Sum of guesses Subtract – 3 rd guess – 4th guess - 86 Created by Rina Iati, South Western School District, Hanover, PA


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