Learners hone their math skills with this add and subtract tenths and hundredths without regrouping worksheet. While adding and subtracting decimals, students use the relationship between addition and subtraction to find the missing number. They do not need to regroup numbers in add and subtract tenths and hundredths without regrouping worksheet. In this worksheet, numbers are laid one on top of another (vertical format). This encourages students to use the inherent place value structure to solve the problems.