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Published byAron Bailey Modified over 9 years ago

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Methods for Multiplying

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Standard Algorithm

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Partial Products 12000800280 9006021 40 3 300 20 7 Draw table with dimensions of digits in each number. Ex. 2 x 3 Write numbers using place value. Multiply. Place product in corresponding cell. Add cells. 12000 800 900 280 60 + 21 14061

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Lattice Method 1 2 0 8 2 8 0 9 0 6 2 1 3 2 7 Draw table with dimensions of digits in each number. Ex. 2 x 3 Write numbers using face value. Multiply. Place product in corresponding cell. Tens digit in top triangle, ones digit in bottom triangle. Add along the diagonals.

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