1. Lattice Multiplication
Single digit x single digit
Double digit x single digit
Double digit x double digit

2. Setting up Single-Digit Lattice Multiplication
1. First write the numbers. 3 2

3. Setting up Single-Digit Lattice Multiplication
2. Second, draw a box. 3 2

4. Setting up Single-Digit Lattice Multiplication
2. Third, draw an arrow through the box. 3 2

5. 3 2 Steps to Solve The tens go in the red box.
The ones go in the teal box. 3 2

6. 3 2 6 Steps to Solve The tens go in the red box.
The ones go in the teal box. 3 2 6

7. Steps to Solve
Follow the arrow to write the numbers. 3 2 6
0 6

8. Steps to Solve
What is our answer? 3 2 6
0 6

9. Double-digit Lattice Multiplication
You have to start with a number sentence:
12 x 5 = __

10. Setting up Double-Digit Lattice Multiplication
1. First write the numbers. 1 2 5

11. Setting up Double-Digit Lattice Multiplication
2. Second, draw a box. 1 2 5

12. Setting up Double-Digit Lattice Multiplication
3. Third, split up the double digit numbers. 1 2 5

13. Setting up Double-Digit Lattice Multiplication
4. Fourth, draw an arrow through each box. 1 2 5

14. Steps to Solve
Break the problem down into single-digit problems (click): 1 2 5

15. 1 2 5 Steps to Solve Solve as a single digit problem
*The tens go in the red box.
*The ones go in the teal box. 1 2 5

16. 1 2 5 Steps to Solve Move to the second single-digit problem (click).
*The tens go in the red box.
*The ones go in the teal box. 1 2 5

17. Steps to Solve
Follow the arrow to write the numbers.
Numbers that are in the same arrow space are added together. 1 2 1 5 + 5
__ __ __ 6

18. Steps to Solve
What is the answer? 1 2 1 5 + 5
__ __ __ 6

19. Two Double-Digit Multiplication
You start with a number sentence:
63 x 21 = __

20. Setting up Two Double-Digit Lattice Multiplication
1. First write the numbers. 6 3 2 1

21. Setting up Two Double-Digit Lattice Multiplication
2. Second, draw a box. 6 3 2 1

22. Setting up Two Double-Digit Lattice Multiplication6 3
3. Third, split up the double digit numbers. 2 1

23. Setting up Two Double-Digit Lattice Multiplication6 3
4. Fourth, draw an arrow through each box. *one of the arrows should go through two boxes! 2 1
___ ___ ___ ___

24. Solving a Two Double-Digit Lattice Multiplication6 3
Break the problem down into single-digit problems (click): 2 1

25. Solving a Two Double-Digit Lattice Multiplication6 3
Solve as a single digit problem (click)
*The tens go in the red box.
*The ones go in the teal box. 1 2 2 1

26. Solving a Two Double-Digit Lattice Multiplication6 3
Solve as a single digit problem (click)
*The tens go in the red box.
*The ones go in the teal box. 2 1 6

27. Solving a Two Double-Digit Lattice Multiplication6 3
Solve as a single digit problem (click)
*The tens go in the red box.
*The ones go in the teal box. 2 1 3

28. Solving a Two Double-Digit Lattice Multiplication6 3
Follow the arrow to write the numbers.
*Numbers that are in the same arrow space are added together. If an arrow space is greater than 9, you write the ones and carry the tens value. 1 + 2 2 6 + + 1 + 6 3
___ ___ ___ ___

29. Solving a Two Double-Digit Lattice Multiplication6 3
What is our answer? 1 + 2 2 6 + + 1 + 6 3 1 3 2 3
___ ___ ___ ___