Add and Subtract Thousandths less than 100: Horizontal - Worksheet

Students align the decimal points and add extra zeros to the right of the number before adding or subtracting decimals to ensure that each decimal has the same number of digits. Then, for the answer, students add or subtract digits at each place. This worksheet is about practicing with the horizontal format in which numbers are written side by side. To develop flexibility with numbers and operations, students need to have enough practice in this format and not just rely on the vertical/column method.