Post on 25-May-2015
description
LATTICE MULTIPLICATION
By: Keri Adams
Welcome to Lattice Multiplication
What is Lattice Multiplication?
Lattice multiplication is a method of multiplying large numbers using a grid. This method breaks the multiplication process into smaller steps; which for some, makes it easier.
Setting up the Lattice First draw a grid that has as many rows and columns
as the multiplicand and the multiplier.
The grid below shows multiplying a 2-digit number by a 2-digit number.1 2
1
2
Drawing the grid:
Multiplicand vs. Multiplier
What is a Multiplicand?
A multiplicand is the number that is or is to be multiplied by another number.
What is a Multiplier?
A multiplier is the number by which another number is multiplied
For example: in 35 × 10, the multiplicand is 35 and the multiplier is 10.
Multiplicand and Multiplier?
Where to place the Multiplicand and
Multiplier
Multiplicand
Multiplier
3 5
0
1
Example: 35 × 10
Setting up the Lattice
Draw a diagonal line through each box from the upper right corner to the lower left corner.
This gives us a spot for
the tens place and a spot for the ones place.
Tens
Ones
Quick review: Place Value
How to put the answer into the lattice
Tens
Ones
1 4
1 × 1 Lattice Multiplication Video
1 × 2 Lattice Multiplication Video
2 × 2 Lattice Multiplication
Example:
Answer:
First Second Third
Fourth Fifth Last
2 × 2 Lattice Multiplication Video
Tips to Go:
References: http://www.coolmath4kids.com/times-tables/times-tables-lesson-lattice-
multiplication-3.html
http://www.thefreedictionary.com/multiplicand http://www.thefreedictionary.com/multiplier http://www.free-maths-dictionary.com/multiplicand
http://images.google.com/imgres?imgurl=http://www.math-smarts.com/images/Chart.jpg&imgrefurl=http://www.math-smarts.com/multiply.html&usg=__GFn-qLLLyTmqym8SEUZTErbL8aM=&h=462&w=481&sz=50&hl=en&start=27&um=1&tbnid=Sr9A70EW1v-cuM:&tbnh=124&tbnw=129&prev=/images%3Fq%3Dmultiplication%2Bchart%26ndsp%3D20%26hl%3Den%26sa%3DN%26start%3D20%26um%3D1
http://www.coolmath4kids.com/times-tables/times-tables-lesson-lattice-multiplication-1.html