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Lattice Multiplication A NEW way to MultiplyPowerPoint Presentation

Lattice Multiplication A NEW way to Multiply

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## PowerPoint Slideshow about ' Lattice Multiplication A NEW way to Multiply' - lazzaro-murphy

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Lattice Multiplication

- First Look your problem.
- Determine the number of digits in the first factor. (The numbers on the Top)
- Then determine the number of digits in the second factor. (The numbers on the Bottom)
- Now construct (draw) a big box and divide it to where you have the same number of squares needed for the number of digits located in the top and bottom factors. See left.

36

X 28

Lattice Multiplication

- Now, write the first factor across the top and the second factor down the side.

36

X 28

- Now begin to multiply the first factors together, the tens digit goes in the top half of the box and the ones digit goes in the bottom half.

Lattice Multiplication

36

X 28

- Now continue multiplying. (If the answer is a single digit, such as 6, then place a 0 in the top half the box and write a 6 in the bottom half.)

Lattice Multiplication

36

X 28

N such as 6, then place a 0 in the top half the box and write a 6 in the bottom half.)

- Now add each of the columns diagonally. Regroup when necessary.
- Follow the same steps for 3-digit by 2-digit numbers! (Or can be used with any multiplication problem!)

Lattice Multiplication

36

X 28

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