This worksheet challenges young mathematicians to hone their math skills by solving a set of problems on multiplying by 20. While adding decimals, students use the relationship between addition and subtraction to find the missing number. They also need to regroup numbers in multiply by 20 worksheet utilizing the relationship between ones, tenth, hundredth, thousandth, etc., To get to the result. 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.