This worksheet gives students an opportunity to apply the concepts of addition and subtraction to add and subtract tenths and hundredths less than 10 with regrouping. Students use the relationship between addition and subtraction to find the missing number while adding or subtracting decimals. To reach the answer, they must also regroup the numbers in add and subtract tenths and hundredths less than 10 with regrouping worksheet using the relationships between ones, tenths, hundredths, thousandths, etc.