1. How to Multiply using Lattice

2. Step 1: How many boxes to you need?23
X 5
You need 2 boxes on top and 1 on the side.

3. Step 2: Set up the Lattice Box 5

4. Step 3: Multiply 2 by 5 5 1

5. Step 4: Multiply 3 by 5 5 1 1 5

6. Step 5: Add the numbers between the slanted lines 5 1 1 1 5 1 5

7. Step 6: Write your answer to the problem 5 1 1 1 5 1 5
23 x 5 =115

8. Multiplying 2 digit by 2 digit

9. 47 Step 1: How many boxes to you need? X 12
You need 2 boxes on top and 2 on the side.

10. Step 2: Set up the Lattice Box 1 2

11. Step 3: Multiply 4 by 1 1 2 4

12. Step 4: Multiply 4 by 2 1 2 4 8

13. Step 5: Multiply 7 by 1 1 2 7 4 8

14. Step 6: Multiply 7 by 2 1 2 7 4 1 8 4

15. Step 7: Add up the numbers between the slanted lines. 1 2
If sum = more than 9, carry by adding the number to the slanted row to the left. 1 7 4 1 8 5 4 6 4

16. Step 8: Write the answer to the multiplication problem. 1 2
47x12=564 1 7 4 1 8 5 4 6 4

17. 783 Step 1: How many boxes to you need? X 532
You need 3 boxes on top and 3 on the side.

18. Step 2: Set up your lattice box. 5 3 2

19. Step 3: Multiply 7 by 5, 3, & 2. 3 5 3 2 5 2 1 1 4

20. Step 4: Multiply 8 by 5, 3, & 2. 3 4 5 3 2 5 2 2 4 1 1 1 6 4

21. Step 5: Multiply 3 by 5, 3, & 2. 1 3 4 5 3 2 5 5 2 2 4 1 9 1 1 6 4 6

22. Step 6: Add up the numbers between the slanted lines.
If the sum = more than 9, carry by adding the number to the slanted row to the left. 1 1 1 1 3 4 5 3 2 5 5 4 2 2 4 1 9 1 1 1 6 4 6 6 5 6 5

23. Step 7: Write the sum of the multiplication problem. 1 1 1 1 3 4 5 3 2 5 5 4 2 2 4 1 9 1 1 1 6 4 6 6 5 6 5
783 x 532 = 416,556