CCSS 1.OA.C.6 Worksheets
Grade 1 · Operations & Algebraic Thinking
Add and subtract within 20, with fluency for sums and differences within 10 using strategies like making ten.
Below are free printable worksheets that support 1.OA.C.6. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.
Teach this standard
Deliver a whole lesson on 1.OA.C.6 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.
Teaching guide
Add and subtract within 20, with fluency for sums and differences within 10 using strategies like making ten.
Build fluency within 20 through make-ten, doubles, near-doubles and related subtraction facts before moving to written algorithms.
Generated and checked in code, so it is correct.
Relying on counting all for every fact, which slows later work with two-digit numbers.
Addition worksheets
All addition worksheets →Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.
Subtraction worksheets
All subtraction worksheets →Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.
Number Bonds worksheets
All number bonds worksheets →Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.