By Erin Christianson

04/20/23

3 4 9

Each Lattice equation must have boxes. In this case for this equation it is a 2 by 1 box but if it was 56x23 it would be a 2 by 2 box.

3 6

2 7

60

1

3

Question:34x9=?Answer: 306

4 5 7 2 3 0 6

For each number you multiply the top number on the side by the two top numbers in the Top 2 boxes then repeat with the bottom number

2 1

8

35

4

O2

1

4

3When you put the numbers in the boxes put the tens in the top box and the ones in the smaller box.

4 7

7

9

2 4 2 8 9

3 6

6 3

31

7

1

3

As shown in the example above, you add the numbers in a diagonal way then carry if needed and put the number in the ones place in the bottom space.

2 4 2 8 9

3 6

6 3

3

7

1

3

4 7

7

9

1 Answer: 3,713

Please make sure to do each step when you solve a lattice problem or you might get the wrong answer. Also ask your teacher if you should make an Estimate first.

http://www.youtube.com/watch?v=gS6TfWUv97I&feature=edu&list=PL301908982CBFE20D

If you need any more help watch this video…