Horizontal Addition Facts Answer Key

This worksheet presents addition facts horizontally, requiring students to compute sums of single-digit numbers with six or seven. The horizontal format encourages students to mentally calculate answers rather than relying on vertical alignment. Repeated exposure helps build instant recall of basic addition facts, an essential skill for success in advanced arithmetic. The worksheet includes a wide range of addends, enabling students to notice patterns and strengthen number sense. It also reinforces accuracy, speed, and consistent mathematical reasoning.

Curriculum Matched Skills

Mathematics – Fluency with Addition Within 20

Mathematics – Mental Math

Mathematics – Number Sense Development

Mathematics – Single-Digit Computation

This worksheet is part of our Addition Facts With 6 and 7 Worksheets collection.