The ‘Lattice’ method

Question:

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This is the multiplication of the numbers 451 x 763. The ‘Lattice’ method has been used. Can you find the product and the method?

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Answer: The product is 344113. — In the multiplication each cell is the product of the number at the top of each column and to the right of each row, and the sums are added along the diagonals to obtain the final product.

 

 

 

 

 

 

 

 

 

 

 

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