# How to use the lattice method

### by Ria

## materials

-paper

-pen

-your brain

-pen

-your brain

## method

1. First, get your sums, mine is 42 and 35 and set it up as shown below.

2. Now draw diagonal lines in each square.

3. After you did that, x 3 and 2 which equals 6 , so put the six in the first row, first box in the bottom right corner,and put a 0 in the top left corner so its not confusing. Now do the same thing in the second box, first row, so x 3 and 4 which equals 12, so put the 2 in the first row second square bottom right corner and the 1 in the top left corner. Do the same to the second row.

2. Now draw diagonal lines in each square.

3. After you did that, x 3 and 2 which equals 6 , so put the six in the first row, first box in the bottom right corner,and put a 0 in the top left corner so its not confusing. Now do the same thing in the second box, first row, so x 3 and 4 which equals 12, so put the 2 in the first row second square bottom right corner and the 1 in the top left corner. Do the same to the second row.

so first you have to add the 0 to nothing so it would be 0,

then you add 6 and 1 and 0 which is 7,

now you add 0 , 2 and 2 which is 4 ,

lastly you add 1 by it self so its 1

which adds up to 1470