Chinese Multiplication

1
Chinese Multiplication

• Also known as
• The Gelosia method
• The Lattice Method

2

• 46 37

Draw grid
Draw lattice
3

• 46 37

4
6
3
7
4
63

• 46 37

4
6
1
3
8
7
5

• 46 37

4
6
1
3
8
67
4
7
2
6

• 46 37

4
6
43
1
1
3
8
2
4
7
2
7

• 46 37

4
6
1
1
3
8
2
47
4
2
7
2
8
8

• 46 37

4
6
Add diagonals
1
1
3
8
2
4
2
7
2
8
9

• 46 37

4
6
1
1
3
8
2
4
2
7
2
8
2
10

• 46 37

4
6
84820
1
1
3
8
2
4
2
7
2
2
8
0
2
11

• 46 37

4
6
22217
1
1
3
8
2
4
2
7
2
2
8
7
0
2
12

• 46 37

4
6
1
1
3
1
8
2
4
2
7
2
2
8
7
0
2
13

• 46 37 1702

4
6
1
1
3
1
8
2
4
2
7
2
2
8
7
Read off answer
0
2