1. Partial Products Algorithm for Multiplication
Created by Rina Iati
South Western School District
Hanover, PA

2. Created By Rina Iati, South Western School District
To find 67 x 53, think of 67 as and 53 as Then multiply each part of one sum by each part of the other, and add the results 6 7 X 5 3
3,000
Calculate 50 X 60
350
Calculate 50 X 7
180
Calculate 3 X 60 21 +
Calculate 3 X 7
3,551
Add the results
Created By Rina Iati, South Western School District

3. Created By Rina Iati, South Western School District
Let’s try another one. 1 4 X 2 3
200
Calculate 10 X 20 80
Calculate 20 X 4 30
Calculate 3 X 10 12 +
Calculate 3 X 4
322
Add the results
Created By Rina Iati, South Western School District

4. Created By Rina Iati, South Western School District
Do this one on your own. 3 8
Let’s see if you’re right. X 7 9
2, 100
Calculate 30 X 70
560
Calculate 70 X 8
270
Calculate 9 X 30 72 +
Calculate 9 X 8
3002
Add the results
Created By Rina Iati, South Western School District