This worksheet gives students an opportunity to apply the concepts of addition to add tenths and hundredths less than 1 without regrouping. Students use the relationship between addition and subtraction to find the missing number while adding decimals. They do not need to regroup the numbers in add tenths and hundredths less than 1 without regrouping worksheet to get to the result. 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.