This add different decimal places less than 100 worksheet consists of tasks to help your young mathematician develop fluency with addition. To ensure that each decimal has the same number of digits while adding decimals, students align the decimal points and insert additional zeros to the right of the number. Students then add digits at each place to find the sum. This worksheet is about practicing the column method in which numbers are written one on top of another. In this method, students use their place value understanding to solve the problems.