Illinois Learning Standards incorporating the Common Core State Standards (CCSS-M) — Illinois
IAR Grades 3-5 Number and Operations in Base Ten. Practice it free.
Use place value understanding and properties of operations to perform multi-digit arithmetic. This Grades 3-5 reporting domain maps to 3 practice skills and 8 representative questions from the playable bank.
What the test measuresStandards basis How the IAR reports it Blueprint & weighting Official sources
Number and Operations in Base Ten skills
generalize place value understanding for multi-digit whole numbers
use place value understanding and properties of operations to perform multi-digit arithmetic
develop understanding of fractions as numbers
apply and extend previous understandings of multiplication and division to fractions
IAR is Illinois’ state assessment built on the Illinois Learning Standards incorporating the Common Core, and its math design follows the PARCC-style blueprinting approach used for grades 3–8. ISBE’s resources page points to the PARCC mathematics model content frameworks, and the IAR page says the math evidence statements are aligned directly to the Common Core State Standards.
IAR uses the PARCC-derived / Illinois Assessment of Readiness (IAR) framework (by grade domains structure).
Illinois State Board of Education – Illinois Assessment of Readiness
Illinois State Board of Education – Resources
Practice by skill
Topics mapped to this domain
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8 free questions · 0/0 correct
What is ?
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Round to the nearest ten.
The digit one place to the right is , so round down: .
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Round to the nearest hundred.
The digit one place to the right is , so round up: .
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Keep practicing
Turn number and operations in base ten into game time.
The IAR placement starts with this test's real coverage map and finds the right difficulty.
The same skills on other tests
Source and test overview
Reporting categories