Transcript Lattice Multiplication

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
Steps to Solve
The tens go in
the red box.
The ones go in
the teal box.
3
2
Steps to Solve
The tens go in
the red box.
The ones go in
the teal box.
3
0
2
6
Steps to Solve
Follow the
arrow to write
the numbers.
0
3
0
6
2
6
Steps to Solve
What is our
answer?
0
3
0
6
2
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
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
Steps to Solve
Move to the second
single-digit problem
(click).
Solve.
*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.
__
0
1 2
0 +1 5
5 0
__
6 __
0
Steps to Solve
What is the answer?
__
0
1 2
0 +1 5
5 0
__
6 __
0
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
3. Third, split up the
double digit numbers.
6 3
2
1
Setting up Two Double-Digit Lattice
Multiplication
4. Fourth, draw an arrow
through each box.
6 3
*one of the arrows
should go through two
boxes!
___ ___ ___ ___
2
1
Solving a Two Double-Digit Lattice
Multiplication
Break the problem down
into single-digit
problems (click):
6 3
2
1
Solving a Two Double-Digit Lattice
Multiplication
Solve as a single digit
problem (click)
*The tens go in the red box.
*The ones go in the teal box.
6 3
12
2
1
Solving a Two Double-Digit Lattice
Multiplication
Solve as a single digit
problem (click)
6 3
*The tens go in the red box.
*The ones go in the teal box.
06
2
1
Solving a Two Double-Digit Lattice
Multiplication
Solve as a single digit
problem (click)
*The tens go in the red box.
*The ones go in the teal box.
6 3
2
03 1
Solving a Two Double-Digit Lattice
Multiplication
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.
6 3
1 2+0 6 2
+ +
0 6+0 3 1
___ ___ ___ ___
Solving a Two Double-Digit Lattice
Multiplication
6
3
What is our answer?
1 2+0 6 2
+ +
0 6+0 3 1
___
1 ___
3 ___
2 ___
3