Common Core math · Grade 8 · The Number System
8.NS.1
Grade 8 The Number System
What 8.NS.1 says
Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.
- Grade
- Grade 8
- Domain
- NS — The Number System
- Full code
- Math.8.NS.1
Published text from corestandards.org.
Practice for 8.NS.1
We do not have a worksheet aligned specifically to this standard yet. Rather than list loosely related sheets, we have left it empty — you can browse all free math worksheets or the Grade 8 math lessons instead.
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Other Grade 8 standards
8.NS.1 — common questions
What is 8.NS.1?
8.NS.1 is a Grade 8 Common Core math standard in the The Number System domain. It reads: “Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.”
What grade is 8.NS.1?
8.NS.1 is a Grade 8 standard. The number straight after the domain letters is the grade, so the “8” in 8.NS.1 means Grade 8.
What does the code 8.NS.1 stand for?
Read it left to right: 8 is the grade, NS is the domain (The Number System), and the last number is the standard within that domain. The full identifier is Math.8.NS.1.