So You Want To Learn Lattice Multiplication? Lattice multiplication is an excellent extension/enrichment for beginners, or help for remedial students. Please send feedback to fisher_d@madera.k12.ca.us.

43 x 92

4 3 9 2

3 4 2 9 7 2

3 4 3 2 9 6 7 2

4 3 3 2 9 6 7 2 6

3 4 3 2 9 6 7 2 8 6

4 3 3 2 9 6 7 2 8 6

4 3 3 2 9 6 7 2 8 6 6

4 3 1 3 2 9 6 7 2 8 6 6 5

4 3 1 3 2 9 6 7 2 9 8 6 6 5

4 3 3 2 9 3 6 7 2 9 8 6 6 5

4 3 3 2 9 3 6 7 2 9 8 6 6 5

43 x 92 = 3,956

Another example 68 x 79

6 8 7 9

8 6 4 7 2 9

8 6 4 7 2 5 9 4

8 6 4 5 7 2 6 5 9 4

6 8 4 5 7 2 6 5 7 9 4 2

6 8 4 5 7 2 6 5 7 9 4 2

6 8 4 5 7 2 6 5 7 9 4 2 2

6 8 1 4 5 7 2 6 5 7 9 4 2 2 7

6 8 1 1 4 5 7 2 6 5 7 9 3 4 2 2 7

6 8 1 4 5 7 5 2 6 5 7 9 3 4 2 2 7

6 8 4 5 7 5 2 6 5 7 9 3 4 2 2 7

68 x 79 = 5,372

A harder example 510 x 46

5 1 4 6

5 1 2 4 6

5 1 2 4 4 6

5 1 2 4 4 6

5 1 2 4 4 6

5 1 2 4 4 6 6

5 1 2 4 4 3 6 6

5 1 2 4 4 3 6 6

5 1 2 4 4 3 6 6

5 1 2 4 4 3 6 6 6

5 1 2 4 4 3 6 6 4 6

5 1 2 4 4 3 6 3 6 4 6

5 1 2 4 2 4 3 6 3 6 4 6

5 1 2 4 2 4 3 6 3 6 4 6

510 x 46 = 23,460

Can you do this? 357 x 8

3 5 7 8

3 5 7 2 4 5 8 4 6

3 5 7 2 4 5 8 4 2 6 6 8 5

357 x 8 = 2,856

Try this one! 21 x 94

2 1 9 4

2 1 1 9 8 9 4 8 4

2 1 1 1 9 1 8 9 4 9 8 4 4 7

21 x 94 = 1,974