This worksheet consists of a set of questions on subtraction where students are required to subtract hundredths and thousandths less than 1 with regrouping. In this worksheet, students subtract decimals by aligning the decimal points and using zero as a placeholder. To find the difference, they must additionally regroup the numbers. In each problem, the numbers are laid out in the horizontal format. Students should try to use different strategies involving composing and decomposing numbers to solve these problems. This will help them develop flexibility and fluency.