This math topic focuses on practicing finding missing values in addition problems that summarize to tens. It hones the ability to add 1 and 2-digit integers by having students determine the unknown addend that achieves a specific sum. The exercises range from basic to slightly more challenging puzzles, ensuring the learner understands integer addition up to two digits. Each problem offers multiple-choice answers, assisting in quicker validation of the learner's solutions.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Solve for the missing value