This math topic involves solving for missing values in addition problems involving three or four 2-digit numbers, which total to a given sum. Each problem presents multiple-choice options and requires basic calculation skills and an understanding of integer properties. The subject matter falls within a broader unit on the addition and subtraction of 2- and 3-digit integers. The provided problems help students develop and assess their ability to manipulate and calculate integers in addition equations to find unknown components.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.