Teen Number Decrease Answer Key

This worksheet features vertical subtraction problems involving teens minus 8 or 9. Students compute differences and record them in aligned answer boxes, reinforcing careful digit placement. The consistent practice strengthens students’ understanding of number relationships and improves their ability to subtract large single-digit values mentally. This sheet promotes fluency and builds confidence with subtraction operations that require more advanced counting skills. The problems serve as an excellent skills-building exercise.

Curriculum Matched Skills

Mathematics – Subtraction within 20

Mathematics – Counting Back by Larger Intervals

Mathematics – Vertical Processing and Accuracy

Mathematics – Mental Math Development

This worksheet is part of our Subtract by 8s and 9s Worksheets collection.