Skip to main content
KnovaKNOVA — A free reading app with curriculum-aligned passages on History & Science for Grades 3-8

Worksheets on Common Core Standard - 1.OA.A.1

KNOVA - A free reading app with curriculum-aligned passages on History & Science
1.OA.A.1 - Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.1
(12 results)

Common Core Standard Worksheets

Adding 3 Numbers with Word Problems - worksheet educational content
Adding 3 Numbers with Word Problems
This worksheet is designed to reinforce the CCSS.MATH.CONTENT.1.OA.A.2 standard. Each problem is a delightful word probl...
1.OA.A.21.OA.A.1
Addition Within 10 - worksheet educational content
Addition Within 10
This 1st grade math worksheet provides practice using Operations and Algebraic Thinking strategies to solve real-world a...
1.OA.A.1
Adding 3 Numbers - Word Problems - worksheet educational content
Adding 3 Numbers - Word Problems
These word problems focus on adding three 1-digit numbers. Illustrations that represent each problem are provided for s...
1.OA.A.21.OA.A.1
Addition Word Problems - worksheet educational content
Addition Word Problems
These addition word problems focus on adding three digits within ten. Illustrations to represent each problem will help ...
1.OA.A.21.OA.A.1
Word Problems — Subtraction - worksheet educational content
Word Problems — Subtraction
1.OA.A.1
Subtraction Within 10 - worksheet educational content
Subtraction Within 10
1.OA.A.1
Subtraction Within 20 - worksheet educational content
Subtraction Within 20
1.OA.A.1
Grade 1 Addition and Subtraction Word Problems Within 20 - game educational content
Grade 1 Addition and Subtraction Word Problems Within 20
1.OA.A.1
Addition and Subtraction Within 20 - game educational content
Addition and Subtraction Within 20
1.OA.C.61.OA.B.31.OA.A.1
First Grade Math Word Search - game educational content
First Grade Math Word Search
Word search on First Grade Math Word Search! Vocabulary practice aligned to Common Core standards!
1.OA.A.11.OA.B.31.NBT.A.11.NBT.B.2
First Grade Math Vocabulary Word Search - game educational content
First Grade Math Vocabulary Word Search
Word search on First Grade Math Vocabulary Word Search! Vocabulary practice aligned to Common Core standards!
1.OA.A.11.OA.B.41.NBT.A.11.MD.A.1
Math Problem Solving Word Search - game educational content
Math Problem Solving Word Search
Word search on Math Problem Solving Word Search! Vocabulary practice aligned to Common Core standards!
K.CC.B.41.OA.A.12.OA.A.13.OA.D.8
Copyright © 2026 Workybooks. Made with ♥ in California.