Addition Missing Numbers in Horizontal Format (1–99) Worksheets – Beginner to Intermediate Level Math Problems
Boost math confidence with these addition worksheets featuring missing numbers within 1–99. Each equation is presented in a horizontal format, where students solve for the missing addend or sum. This engaging approach helps learners build strong number sense while practicing addition facts beyond single digits.
These worksheets support students by:
Strengthening addition skills with numbers up to 99
Developing place value understanding (tens and ones)
Encouraging critical thinking and problem-solving through missing addend practice
Preparing learners for more advanced 2-digit and 3-digit operations
Perfect for Grade 1, Grade 2, and early Grade 3 students, these worksheets are suitable for classroom practice, homeschooling, math centers, and extra at-home learning. The progressive practice ensures learners gain fluency step by step, moving from easier to more challenging problems.
A versatile and effective resource for mastering addition with missing numbers up to 99!
Worksheets are made in 8.5” x 11” Standard Letter Size. This resource is helpful in students’ assessment, Independent Studies, group activities, practice and homework. This product is available in PDF format and ready to print as well.
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$3.50