This multiply tenths less than 100 and multiples of 100 worksheet consists of tasks to help your young mathematician develop fluency with multiplication. When students multiply a decimal by a number ending in zeros, they first ignore the decimal point, multiply the numbers, and then add the decimal point in the product as many places from the right as the number of decimal digits in the original number. In this worksheet, numbers are laid one on top of another (vertical format). This encourages students to use the inherent place value structure to solve the problems.