Lattice Multiplication Techniques

The video tutorial explains lattice multiplication for a three-digit number by a two-digit number. It begins with setting up a two-by-three table, placing the numbers 234 and 37, and sketching diagonals. The tutorial then guides through multiplying individual digits, recording results, and finally adding numbers along the diagonals to arrive at the product, 8658.

What is the first step in setting up a lattice multiplication for a three-digit by two-digit multiplication?

• Draw a three by three table.

• Record the three-digit number along the top.

• Record the two-digit number along the left.

• Sketch the diagonals in blue.

When multiplying the digits in the lattice, what is the result of 2 times 3?

• 06

• 09

• 12

• 14

What is the result of multiplying 4 by 7 in the lattice grid?

• 14

• 28

• 12

• 21

How do you handle the sum of 16 when adding along the diagonals?

• Record 0 and carry 16

• Record 16 and carry 0

• Record 1 and carry 6

• Record 6 and carry 1

What is the final product of the multiplication in the lattice method?

• 6,588

• 6,858

• 8,568

• 8,658