Students first multiply as though there is no decimal when multiplying two decimals. They then add the same number of digits after the decimal point in the product as there are decimal digits in each number. Multiply hundredths less than 10 and hundredths less than 1 worksheet encourages them to apply this understanding to find the missing number in decimal multiplication. This worksheet is about practicing with the horizontal format in which numbers are written side by side. To develop flexibility with numbers and operations, students need to have enough practice in this format and not just rely on the vertical/column method.