How to Multiply using Lattice

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

Step 2: Set up the Lattice Box 2 3 5

2 3 5 Step 3: Multiply 2 by 5 1 0

2 3 5 Step 4: Multiply 3 by

2 3 5 Step 5: Add the numbers between the slanted lines

2 3 5 Step 6: Write your answer to the problem x 5 =115

Multiplying 2 digit by 2 digit

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

Step 2: Set up the Lattice Box

Step 3: Multiply 4 by

Step 4: Multiply 4 by

Step 5: Multiply 7 by

Step 6: Multiply 7 by

Step 7: Add up the numbers between the slanted lines If sum = more than 9, carry by adding the number to the slanted row to the left.

Step 8: Write the answer to the multiplication problem x12=564

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

Step 2: Set up your lattice box

Step 3: Multiply 7 by 5, 3, &

Step 4: Multiply 8 by 5, 3, &

Step 5: Multiply 3 by 5, 3, &

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.

Step 7: Write the sum of the multiplication problem x 532 = 416,556