Give your little one the opportunity to dive deeper into addition with this add hundredths and thousandths less than 100 with regrouping worksheet. Students use the relationship between addition and subtraction to find the missing number while adding decimals. To reach the answer, they must also regroup the numbers in add hundredths and thousandths less than 100 with regrouping worksheet using the relationships between ones, tenths, hundredths, thousandths, etc. In each problem, the numbers are laid out in the horizontal format. Students should try to use different strategies involving composing and decomposing numbers to solve these problems. This will help them develop flexibility and fluency.