Count On Within 20 is a free printable Grade 1 math worksheet on counting on three or four from a larger start, within twenty, aligned to Common Core standard 1.OA.C.5. It prints 13 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.
1.OA.C.5
Work out each answer.
LessonPrint · 1.OA.C.5 · Set 19 · free to copy for classroom use
Set 19. Prints on its own sheet.
Count on to add, and count back to subtract.
Teaching this next? Counting On and Counting Back is the 40-minute plan for it, with the misconceptions to expect.
Last reviewed 2026-09-05. Aligned to 1.OA.C.5 of the Common Core State Standards for Mathematics.