This add hundredths and thousandths less than 100 worksheet consists of a set of questions on addition, which help students develop fluency. When adding decimals on this worksheet, students align the decimal points and use zero as a placeholder. Then to find the missing number in the add hundredths and thousandths less than 100 worksheet, students then apply the relationship between addition and subtraction. 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.