alleryIn lattice multiplication, how are the two-digit products added up?
AAcross the rows
BDown the columns
CAlong the diagonals
DOnly in corners
Answer & Solution
Correct answer: C. Along the diagonals
1. Lattice multiplication fills a grid with two-digit products.
2. The tens digit goes top-left and the ones digit bottom-right.
3. Then the sums are taken along the diagonals.
_Source: Wikipedia, Multiplication algorithm (CC BY-SA 4.0, rev 1379690463), Lattice multiplication_
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