i-Ready Diagnostic for 3rd Grade

i-Ready Diagnostic 3rd Grade Sample Questions

The i-Ready Diagnostic is an adaptive online test that is intended to show your child’s understanding of Math and Reading and help figure out what your child is ready to learn next. As an adaptive test, questions will get easier or harder depending on how your child is progressing on the test.  Questions may range up to three grade levels above your child’s current grade.

The i-Ready Diagnostic is given in the following order for children in 3rd Grade.


  • Algebra and Algebraic Thinking – In this section, students’ understanding of algebraic concepts is assessed, focusing on patterns, relationships, and basic functions. They work with more complex equations and learn to solve problems using various strategies, building on their knowledge from previous grades.
  • Numbers and Operations – This section evaluates students’ ability to recognize and work with numbers, including counting, comparing, adding, and subtracting. Students delve deeper into place value and arithmetic operations, including multiplication and division.
  • Geometry – The Geometry section assesses students’ knowledge of geometric shapes and their properties. They continue to identify, classify, and manipulate shapes while exploring spatial relationships, patterns, and more advanced geometric concepts.
  • Measurement and Data – This section covers concepts related to measurement and data, such as length, weight, time, and temperature, building on the foundation laid in earlier grades. Students learn to use different tools and units for measurement and practice interpreting and representing data in various forms, including more complex graphs and charts.
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  • Vocabulary – The Vocabulary section assesses students’ understanding of a wide range of words, their meanings, and their usage in context. Building a strong vocabulary is essential for reading comprehension and effective communication, and this section helps students expand their word knowledge.
  • Comprehension: Literature – In this section, students are tested on their ability to understand and interpret literary texts, such as stories, poems, and plays. They delve deeper into analyzing characters, settings, events, themes, and central messages, enhancing their critical thinking skills.
  • Comprehension: Informational Text – This section focuses on evaluating students’ ability to comprehend informational texts, such as articles, reports, and nonfiction books. Students practice identifying main ideas, supporting details, text structures, and author’s purpose in a variety of informational text types, further developing their comprehension skills.
  • Phonics (if your child’s overall scale score is less than 511) – For students with an overall scale score of less than 511, this section helps reinforce their ability to recognize and decode letters and their corresponding sounds. They continue to develop their decoding skills, focusing on more complex letter combinations and patterns.
  • High-Frequency Words (if your child’s score on the Phonics domain is less than 421) – For students with a Phonics domain score of less than 421, this section targets their ability to recognize and read high-frequency words, also known as sight words, which are commonly found in texts. Mastery of high-frequency words promotes reading fluency and comprehension.

Below you will find sample questions that are representative of 3rd Grade questions your child will see on the test but are not taken directly from the actual i-Ready Diagnostic that is being administered this year.

1. Where would you find the best information for a report about Chinese architecture?

A. your teacher
B. a dictionary
C. a person who lived in China with his family for three years
D. a television documentary about Chinese buildings and architecture

Read the following:
Mary had a little lamb,
Whose fleece was white as snow,
And every where that Mary went,
The lamb was sure to go.

2. What kind of writing is this?

A. poetry
B. non-fiction
C. fiction
D. fairy tale

3. Which statement is a fact, not an opinion?

A. Roxanne is a happy child.
B. Roxanne kept a daily diary.
C. Roxanne is a good friend.
D. Roxanne’s hand writing is very sloppy.

4. Solve for y.                  y = 3 x (9-4)

A. 23
B. 25
C. 15
D. 17

5. On the coordinate grid below, which is closer to home: the store, the library, or school?

A. The library
B. The store
C. The school
D. The store and library are equally close

6. Give the values for y in the given function:

A. 8, 11, 7, 5
B. 4, 7, 3, 0
C. 4, 7, 0, 2
D. 4, 7, 3, 2

7. Choose the correct missing word.
I know ______  the right choice.

A. your
B. your’e
C. youre
D. you’re

8. Identify the sentence that contains a dependent clause.

A. The students will take an exam after lunch.
B. We ate the sandwiches, but we forgot about the potato salad.
C. When the movie ended, Sally took me home.
D. Finish your homework in the morning.

9. Which group is a phrase?

A. When the fain falls, the river rises.
B. Went to dinner after work.
C. The credits play when the movie ends.
D. After we finishing working, we went to dinner.

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Thank you

Lisa Bertani

I would like to help my daughter practice for iready.



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