Chinese (Lattice) Multiplication – Student Activity

Fill each little box with the tens (top) and ones (bottom) of the product. Then fill the diagonal totals around the lattice and finally the full answer.

A =
B =
=

How to use this lattice:

  1. In each box write tens (top triangle) and ones (bottom triangle) of the digit product.
  2. Add along the diagonals (bottom-right to top-left) and write each total digit in the coloured boxes around the lattice.
  3. Finally type the full product and press Check.
23 × 37 = ?
8 5 1 = 851
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