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Tuesday 26 March 2019

✖Maths✖

Today i am going to talk to you about a method that I learnt in class.
This method is called the lattice method.
If you don't know what a lattice method is let me show you
Related image
So how this works is that you have to draw a perfect square then draw a diagonal line like how it is in the photo. Then the next thing you do is you write one of the two digit number on the top of the square but the numbers can't be close to each other then you do the same but put the number o the right side of the square. Just about two more steps or three anyways the next step is to times the top left number with the bottom right number which is 1x2 which equals 2 so if you get a one digit number as your answer you have to write a 0 on the other side of the line then you times 1 by 8 then you times 6 by 8 next you times 6 by 2  finally the last thing to do is to add line by line and if you don't know what I mean by line by line it means that the 2 equals to 2 and the next number you get by adding the 8,1 and 2 which equals to 11 But you can't write two numbers so you write the number 1 and carry the other one then you add the 8 and 4 which equals to 13 because you add the one that you carried from the 11 But remember you can't write down two numbers so you write the number 3 down and the last number is one because you add the one from when you carried it from the 13 and add it on to the 0 and your answer for 16x82 is... 1312

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