This worksheet gives kids practice in vertical decimal addition and subtraction. Vertical addition and subtraction are mathematical methods involving stacking numbers vertically according to their place value for more straightforward calculation. In vertical addition, you start adding the numbers in the ones place, then the tens place, and so on, from bottom to top, carrying over the value if it exceeds 10. Vertical subtraction works similarly, but instead of adding, you subtract the numbers from each place value, from bottom to top, borrowing from the next higher place value if necessary.