When multiplying decimals, it can be helpful to decompose each number on a place-value chart and then use an area model to determine the resultFor example, if we have 6.5 x 5.3
Decompose 6.5 into 6 ones and 5 tenths; use this as the columns in a matrix
Decompose 5.3 into 5 ones and 3 tenths; use this as the rows in a matrix
Multiply each row and column value
Add up the squares, so 30 ones, 18 tenths, 25 tenths, and 15 hundredths
