Horizontal Ten Addition

This worksheet features horizontal problems requiring students to add ten to two-digit numbers. Students practice quick mental adjustments to the tens place, boosting fluency and number-confidence. The clean layout encourages learners to solve efficiently without the support of vertical alignment. This activity reinforces key base-ten concepts and prepares students for mental strategies needed in more advanced arithmetic. The worksheet is well suited for fluency practice or math warm-ups.

Curriculum Matched Skills

Mathematics – Mental Math With Tens

Mathematics – Addition Within 100

Mathematics – Place Value Understanding

Mathematics – Number Pattern Recognition

This worksheet is part of our Adding 10s and 20s Worksheets collection.