Common Core Math Standards
All 229 Common Core math standards from kindergarten to 8th grade, grouped by grade and domain. Each one is explained in plain English, with an example and practice.
Math Standards by Grade
Grades K–8 for now. High school math is organized by topic, not grade, and comes in a later phase.Math Domains by Grade
Which of the 11 math domains each grade covers, and how many standards it has there. Fractions, for example, is its own domain only in 3rd to 5th grade, and functions only in 8th. Pick a number to see those standards.
| Domain | K | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|
| Counting & Cardinality CC | 7 | ||||||||
| Operations & Algebraic Thinking OA | 5 | 8 | 4 | 9 | 5 | 3 | |||
| Numbers in Base Ten NBT | 1 | 6 | 9 | 3 | 6 | 7 | |||
| Fractions NF | 3 | 7 | 7 | ||||||
| Measurement & Data MD | 3 | 4 | 10 | 8 | 7 | 5 | |||
| Geometry G | 6 | 3 | 3 | 2 | 3 | 4 | 4 | 6 | 9 |
| Ratios & Proportions RP | 3 | 3 | |||||||
| The Number System NS | 8 | 3 | 2 | ||||||
| Expressions & Equations EE | 9 | 4 | 8 | ||||||
| Functions F | 5 | ||||||||
| Statistics & Probability SP | 5 | 8 | 4 |
The 8 Standards for Mathematical Practice
Eight habits students use in every grade, from kindergarten to high school. They sit beside the grade-level standards rather than inside them, so they never appear in a grade’s list. Their codes run from MP1 to MP8.
Make sense of problems and persevere in solving them.
Students work out what a problem is asking, plan a way in, and keep going when the first try doesn’t work.
Ask: What do you know, and what are you trying to find?
Reason abstractly and quantitatively.
Students move between a situation and its numbers: turning a story into an equation, and an answer back into what it means.
Ask: What does the 3 stand for here?
Construct viable arguments and critique the reasoning of others.
Students explain why their answer is right, and listen to, question and judge other students’ reasoning.
Ask: Do you agree with that strategy? Why?
Model with mathematics.
Students use math to describe and solve real situations, with equations, tables, diagrams or graphs.
Ask: Can you draw something that shows the problem?
Use appropriate tools strategically.
Students pick the right tool for the job, like a ruler, number line, protractor or graph paper, and know what it can’t do.
Ask: Which tool would help here?
Attend to precision.
Students use exact words, correct units and labels, and calculate carefully.
Ask: Is that 12 centimeters or 12 inches?
Look for and make use of structure.
Students notice how numbers and shapes are built, like seeing 7 × 8 as 7 × 5 plus 7 × 3.
Ask: How could you break this apart?
Look for and express regularity in repeated reasoning.
Students spot when the same calculation repeats and turn it into a shortcut or a general rule.
Ask: What keeps happening? Will it always?
Fluency by Grade
The ten standards that ask students to compute fluently, from kindergarten to 6th grade. The standard algorithm arrives in 4th grade for adding and subtracting, 5th for multiplying and 6th for dividing.
| Grade | Standard | What Students Do Fluently |
|---|---|---|
| Kindergarten | K.OA.5 | Add and subtract within 5. |
| 1st Grade | 1.OA.6 | Add and subtract within 10, and within 20 using strategies. |
| 2nd Grade | 2.OA.2 | Add and subtract within 20 with mental strategies; know all sums of two one-digit numbers from memory. |
| 2nd Grade | 2.NBT.5 | Add and subtract within 100. |
| 3rd Grade | 3.OA.7 | Multiply and divide within 100; know all products of two one-digit numbers from memory. |
| 3rd Grade | 3.NBT.2 | Add and subtract within 1,000. |
| 4th Grade | 4.NBT.4 | Add and subtract multi-digit whole numbers with the standard algorithm. |
| 5th Grade | 5.NBT.5 | Multiply multi-digit whole numbers with the standard algorithm. |
| 6th Grade | 6.NS.2 | Divide multi-digit numbers with the standard algorithm. |
| 6th Grade | 6.NS.3 | Add, subtract, multiply and divide multi-digit decimals with the standard algorithm. |
Questions About the Common Core Math Standards
Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved. Official wording from the Common Core State Standards PDFs at corestandards.org, last checked October 14, 2026.