Challenge your young math wizards to solve this subtract hundredths and thousandths less than 10 with regrouping worksheet. Students use the relationship between addition and subtraction to find the missing number while subtracting decimals. To reach the answer, they must also regroup the numbers in subtract hundredths and thousandths less than 10 with regrouping worksheet using the relationships between ones, tenths, hundredths, thousandths, etc.