Add 1 within 20: Horizontal Addition Worksheet
Dive into this fun-filled printable worksheet by practicing to add 1 within 20.
After learning how to count, students should learn how to add numbers. There is lots of practice with addition in add 1 within 20 worksheet. In this worksheet, students practice solving problems written in the horizontal format. How numbers are laid out in a problem affects the method a student employs to solve it. Therefore to develop actual fluency and mastery of multiple strategies, students must practice different formats.
