Lattice Multiplication Single digit x single digit Double digit x single digit Double digit x double digit

Setting up Single-Digit Lattice Multiplication 1. First write the numbers. 3 2

Setting up Single-Digit Lattice Multiplication 2. Second, draw a box. 3 2

Setting up Single-Digit Lattice Multiplication 2. Third, draw an arrow through the box. 3 2

3 2 Steps to Solve The tens go in the red box. The ones go in the teal box. 3 2

3 2 6 Steps to Solve The tens go in the red box. The ones go in the teal box. 3 2 6

Steps to Solve Follow the arrow to write the numbers. 3 2 6 0 6

Steps to Solve What is our answer? 3 2 6 0 6

Double-digit Lattice Multiplication You have to start with a number sentence: 12 x 5 = __

Setting up Double-Digit Lattice Multiplication 1. First write the numbers. 1 2 5

Setting up Double-Digit Lattice Multiplication 2. Second, draw a box. 1 2 5

Setting up Double-Digit Lattice Multiplication 3. Third, split up the double digit numbers. 1 2 5

Setting up Double-Digit Lattice Multiplication 4. Fourth, draw an arrow through each box. 1 2 5

Steps to Solve Break the problem down into single-digit problems (click): 1 2 5

1 2 5 Steps to Solve Solve as a single digit problem *The tens go in the red box. *The ones go in the teal box. 1 2 5

1 2 5 Steps to Solve Move to the second single-digit problem (click). *The tens go in the red box. *The ones go in the teal box. 1 2 5

Steps to Solve Follow the arrow to write the numbers. Numbers that are in the same arrow space are added together. 1 2 1 5 + 5 __ __ __ 6

Steps to Solve What is the answer? 1 2 1 5 + 5 __ __ __ 6

Two Double-Digit Multiplication You start with a number sentence: 63 x 21 = __

Setting up Two Double-Digit Lattice Multiplication 1. First write the numbers. 6 3 2 1

Setting up Two Double-Digit Lattice Multiplication 2. Second, draw a box. 6 3 2 1

Setting up Two Double-Digit Lattice Multiplication 6 3 3. Third, split up the double digit numbers. 2 1

Setting up Two Double-Digit Lattice Multiplication 6 3 4. Fourth, draw an arrow through each box. *one of the arrows should go through two boxes! 2 1 ___ ___ ___ ___

Solving a Two Double-Digit Lattice Multiplication 6 3 Break the problem down into single-digit problems (click): 2 1

Solving a Two Double-Digit Lattice Multiplication 6 3 Solve as a single digit problem (click) *The tens go in the red box. *The ones go in the teal box. 1 2 2 1

Solving a Two Double-Digit Lattice Multiplication 6 3 Solve as a single digit problem (click) *The tens go in the red box. *The ones go in the teal box. 2 1 6

Solving a Two Double-Digit Lattice Multiplication 6 3 Solve as a single digit problem (click) *The tens go in the red box. *The ones go in the teal box. 2 1 3

Solving a Two Double-Digit Lattice Multiplication 6 3 Follow the arrow to write the numbers. *Numbers that are in the same arrow space are added together. If an arrow space is greater than 9, you write the ones and carry the tens value. 1 + 2 2 6 + + 1 + 6 3 ___ ___ ___ ___

Solving a Two Double-Digit Lattice Multiplication 6 3 What is our answer? 1 + 2 2 6 + + 1 + 6 3 1 3 2 3 ___ ___ ___ ___