CCSS 1.OA.A.1 Worksheets
Grade 1 · Operations & Algebraic Thinking
Solve addition and subtraction word problems within 20 involving adding to, taking from, putting together, and comparing.
Below are free printable worksheets that support 1.OA.A.1. 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.A.1 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.
Teaching guide
Solve addition and subtraction word problems within 20 involving adding to, taking from, putting together, and comparing.
Start by counting on from the larger number, then move to partitioning into tens and ones and adding each part, and finally column addition with regrouping.
Generated and checked in code, so it is correct.
Adding the tens and ones columns without carrying the regrouped ten, and always counting on from the first number rather than the larger.