Students find the missing number while subtracting decimals by using the relationship between addition and subtraction. To reach the answer, they also use the relationship between ones, tenths, hundredths, thousandths, etc., To regroup the numbers in subtract tenths and hundredths less than 100 with regrouping worksheet. 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.