Can your young mathematician multiply hundredths less than 1 and multiples of 10? That's exactly what they do here. 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, students practice solving problems written in the horizontal format. How numbers are laid out in a problem affects the method a student employs to solve it. Therefore to develop actual fluency and mastery of multiple strategies, students must practice different formats.