1. Lattice Multiplication
Step-by-Step

2. I don’t remember how to multiply!!!
356 * 25 =
I don’t remember how to multiply!!!

3. I can help!! Let me show you how to do Lattice Multiplication.

4. 356 * 25
Make a grid the exact size of your problem. A 2 digit number times a 3 digit number gets a 2 x 3 grid. Draw a diagonal line in each box. 5 3 6 2 5

5. Multiply 6 * 2 and place the answer in the grid where the lines meet.
356 * 25
Multiply 6 * 2 and place the answer in the grid where the lines meet. 5 3 6 1 2 2 5

6. Multiply 5 * 2 and place the answer in the grid where the lines meet.
356 * 25
Multiply 5 * 2 and place the answer in the grid where the lines meet. 5 3 6 1 1 2 2 5

7. 356 * 25
Multiply 3 * 2 and place the answer in the grid where the lines meet. Use a zero as a place holder. 5 3 6 1 1 2 6 2 5

8. Multiply 6 * 5 and place the answer in the grid where the lines meet.
356 * 25
Multiply 6 * 5 and place the answer in the grid where the lines meet. 5 3 6 1 1 2 6 2 3 5

9. Multiply 5 * 5 and place the answer in the grid where the lines meet.
356 * 25
Multiply 5 * 5 and place the answer in the grid where the lines meet. 5 3 6 1 1 2 6 2 2 3 5 5

10. Multiply 3 * 5 and place the answer in the grid where the lines meet.
356 * 25
Multiply 3 * 5 and place the answer in the grid where the lines meet. 5 3 6 1 1 2 6 2 1 2 3 5 5 5

11. 356 * 25
Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 3 6 1 1 2 6 2 1 2 3 5 5 5

12. 356 * 25
Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 3 6 1 1 +1 2 6 2 1 2 3 5 5 5

13. 356 * 25
Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 3 6 1 1 +1 2 6 2 1 2 3 5 5 5 9

14. 356 * 25
Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 3 6 1 1 +1 2 6 2 1 2 3 5 8 5 5 9

15. 356 * 25
Now add the diagonals and place the answer below the grid. Be sure to carry to the next diagonal if you have a 2 digit answer. 5 3 6 1 1 +1 2 6 2 1 2 3 5 8 5 5 9

16. That is Soooo Cool!!!
Thanks!
356 * 25 =
8,900