Regrouping Check
About This Worksheet
Regrouping Check is a second grade review activity that asks students to decide whether completed two-digit addition equations are correct. Each row shows an addition problem with a stated total, and children circle True or False. If an equation is false, students solve it again and write the correct answer in the final column. For example, if 58 + 17 is shown as 75, students can confirm that the equation is true, while an incorrect total must be fixed. This helps children strengthen regrouping skills while also building the habit of checking their work.
Curriculum and Grade Alignment
This worksheet is made for second grade learners who have already practiced adding two-digit numbers with regrouping. The main goal is to help students verify sums and recognize when a regrouping error has occurred. Before using this page, your child should understand how to add ones first, compose a new ten when needed, and then add the tens. The next step is checking their own work using a second strategy, such as expanded form or estimation. This activity supports computation accuracy, error detection, and mathematical reasoning.
Student Tasks
On this worksheet, students will examine ten completed addition equations. They solve or check each problem, circle True or False, and write the correct sum when the printed answer is wrong. The problems include combinations such as 36 + 18, 47 + 26, 58 + 17, 29 + 35, and 68 + 17. Several equations involve regrouping in the ones place. This gives students repeated practice with solving, comparing, and correcting.
Common Challenges and Misconceptions
Some students may trust the printed answer without doing the calculation. Others may recognize that an equation is false but forget to write the corrected total. A child may also make the same regrouping mistake while checking the original problem. Encourage your child to solve each equation independently first and then compare answers. Checking the ones column before the tens can help reveal where an error occurred.
Implementation Guidance
Teachers can use this worksheet after students have practiced regrouping with several strategies. It works well as an informal assessment because students must calculate and evaluate at the same time. Parents can cover the printed total, let the child solve the problem, and then uncover it for comparison. If the two answers do not match, ask the child to explain which step should be checked. This makes correction part of the learning process.
Details and Features
This worksheet includes ten two-digit addition statements in a three-column table. Each row provides a True/False choice and space for a corrected answer. The clean layout keeps the checking process easy to follow. The problems give focused practice with regrouping and common addition errors. The printable supports computation fluency, self-checking, error analysis, and place-value reasoning.