240 likes | 308 Views
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. Step 3: Multiply 2 by 5. 2 3
E N D
Step 1: How many boxes to you need? 23 X 5 You need 2 boxes on top and 1 on the side.
Step 3: Multiply 2 by 5 2 3 5 1 0
Step 4: Multiply 3 by 5 2 3 5 1 1 0 5
Step 5: Add the numbers between the slanted lines 2 3 5 1 1 1 0 5 1 5
Step 6: Write your answer to the problem 2 3 5 1 1 1 0 5 1 5 23 x 5 =115
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 4 7 1 2
Step 3: Multiply 4 by 1 4 7 1 2 0 4
Step 4: Multiply 4 by 2 4 7 1 2 0 4 0 8
Step 5: Multiply 7 by 1 4 7 1 2 0 0 7 4 0 8
Step 6: Multiply 7 by 2 4 7 1 2 0 0 7 4 1 0 8 4
Step 7: Add up the numbers between the slanted lines. 4 7 1 2 If sum = more than 9, carry by adding the number to the slanted row to the left. 1 0 0 7 4 0 1 0 8 5 4 6 4
Step 8: Write the answer to the multiplication problem. 4 7 1 2 47x12=564 1 0 0 7 4 0 1 0 8 5 4 6 4
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. 7 8 3 5 3 2
Step 3: Multiply 7 by 5, 3, & 2. 7 8 3 3 5 3 2 5 2 1 1 4
Step 4: Multiply 8 by 5, 3, & 2. 7 8 3 3 4 5 3 2 5 0 2 2 4 1 1 1 6 4
Step 5: Multiply 3 by 5, 3, & 2. 7 8 3 1 3 4 5 3 2 5 0 5 2 2 0 4 1 9 1 1 0 6 4 6
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. 7 8 3 1 1 1 1 3 4 5 3 2 5 0 5 4 2 2 0 4 1 9 1 1 1 0 6 4 6 6 5 6 5
Step 7: Write the sum of the multiplication problem. 7 8 3 1 1 1 1 3 4 5 3 2 5 0 5 4 2 2 0 4 1 9 1 1 1 0 6 4 6 6 5 6 5 783 x 532 = 416,556