Please watch this video up until you hit 2 minutes and 15 seconds.Īfter watching through the video, have you seen this process before? If not, that's okay! We are going to go through a step by step analysis here using a different example than in the video.It is suggested that you right click on the link and open it up in a new tab so you do not lose your current page. Note: This video will take you to another page.Two-Digit Number Multiplied By a One-Digit Numberīefore going through an example of our own, let us first watch a short clip that demonstrates this process for us: Now that we know what lattice multiplication is and where it comes from, let's look at a specific example. This method not only teaches students on how to multiply two larger numbers, but also allows them to work on their organizational skills and practice identifying the place value of a given number. Through the use of the distributive property, we can use this same process for any type of multiplication problem. This process uses the exact same algorithm you probably learned in your own elementary classes, but organizes it into a box thus, this is why many people also refer to this method as the "box-method". This method was later adopted by Fibonacci in the 14th century and seems to be becoming the "go-to" method in teaching elementary students how to multiply two numbers in which at least one of them is a two-digit number or greater. What is Lattice Multiplication and where does it come from? Good question! Lattice multiplication is a process that was first founded in the 10th century in India.
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