This worksheet invites students to add and subtract thousandths less than 10 without regrouping, which helps them become proficient in addition and subtraction. 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 thousandths less than 10 without regrouping worksheet. In this worksheet, students practice solving problems using the column method. This method is especially helpful with problems involving bigger multi-digit numbers as the format provides an easy structure to follow.