i-Ready Grade 1 Operations and Algebraic Thinking. Practice it free.

Measures addition and subtraction, problem solving, and understanding of equations. This Grade 1 reporting domain maps to 3 practice skills and 8 representative questions from the playable bank.

Grade 13 mapped skills

What the test measures

Operations and Algebraic Thinking skills

Represent and solve problems involving addition and subtraction
Understand and apply properties of operations and the relationship between addition and subtraction
Add and subtract within 20
Work with addition and subtraction equations

Standards basis

Common Core State Standards (CCSS-M)-aligned domains; also aligned to state standards such as Virginia 2023 Mathematics Standards of Learning — national

How the i-Ready reports it

i-Ready Diagnostic is a vendor-developed adaptive assessment, not a state test, but Curriculum Associates reports results and alignment against state standards such as Virginia SOL. The math coverage is organized by grade-level content domains that closely track Common Core-style strands rather than a single fixed claim structure.

Blueprint & weighting

No official per-domain blueprint or item-weight percentages were found on the official product page; i-Ready publishes adaptive diagnostic results and domain placements rather than a public fixed-item weight table.

Official sources

Curriculum Associates: i-Ready Learning
Virginia Department of Education: 2023 Mathematics Standards

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