FREE 3rd Grade Common Core Math Practice Test

6 South Carolina SC READY Grade 3 Math Practice Tests

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For this practice test, we’ve selected 20 real questions from past exams for your students’ Common Core Practice test. Your student will have the chance to try out the most common Common Core Math questions. For every question, there is an in-depth explanation of how to solve the question and how to avoid mistakes next time.

Use our free Common Core Math practice tests and study resources (updated for 2026) to help your students ace the Common Core Math test! Make sure to follow some of the related links at the bottom of this post to get a better idea of what kind of mathematics questions students need to practice.

10 Sample 3rd Grade Common Core Math Practice Questions

1- There are 6 numbers in the box below. Which of the following list shows only even numbers from the numbers in the box?

A. \(15, 29, 42\)

B. \(15, 29, 83\)

C. \(15, 30, 42\)

D. \(42, 18, 30\)

2- Noah packs 18 boxes with crayons. Each box holds 40 crayons. How many crayons can Noah pack into these boxes?

A. 480

B. 540

C. 680

D. 720

3- A cafeteria menu had spaghetti with meatballs for $10 and bean soup for $6. How much would it cost to buy three plates of spaghetti with meatballs and two bowls of bean soup? __________

4- Which number correctly completes the number sentence \(25 × 50 =\)?

A. 225

B. 900

C. 1250

D. 2250

5- Michael has 745 marbles. What is this number rounded to the nearest ten? ____________

6- There are 60 minutes in an hour. How many minutes are in 6 hours?

A. 300 minutes

B. 320 minutes

C. 360 minutes

D. 400 minutes

7- Which number correctly completes the number sentence \(55 × 14 =\)?

A. 550

B. 660

C. 770

D. 990

8- Use the picture below to answer the question.

Which fraction shows the shaded part of this square?

A. \(\frac{88}{100}\)

B. \(\frac{88}{10}\)

C. \(\frac{8.8}{100}\)

D. \(\frac{8}{100}\)

9- What number makes this equation true?
\(12 × 8 = ⎕\)

A. 88

B. 96

C. 100

D. 108

10- Kayla has 109 red cards and 88 white cards. How many more red cards than white cards does Kayla have?

A. 17

B. 19

C. 21

D. 27

11- A number sentence is shown below.
\(3 × 7 \space ⎕ \space 6 = 126\)
What symbol goes into the box to make the number sentence true?

A. \(×\)

B. \(÷\)

C. \(+\)

D. \(-\)

12- Liam had 845 marbles. Then, he gave 455 of the cards to his friend Ethan. After that, Liam lost 116 cards.
Which equation can be used to find the number of cards Liam has now?

A. \(845 – 455 + 116 = \)

B. \(845 – 455 – 116 =\)

C. \(845 + 455 + 116 = \)

D. \(845 + 455 – 116 = \)

13- What is the value of “B” in the following equation?
\(33 + B + 8 = 66\)

A. 16

B. 18

C. 22

D. 25

14- Mason is 18 months now and he usually eats six meals a day. How many meals does he eat in a week?

A. 36

B. 40

C. 42

D. 48

15- Which of the following lists shows only fractions that are equivalent to \(\frac{1}{3}\)?

A. \(\frac{3}{9},\frac{5}{15},\frac{24}{72}\)

B. \(\frac{6}{12},\frac{5}{15},\frac{9}{27}\)

C. \(\frac{3}{9},\frac{4}{15},\frac{6}{18}\)

D. \(\frac{3}{9},\frac{5}{10},\frac{8}{24}\)

16- What mixed number is shown by the shaded rectangles?

A. \(3\frac{1}{2}\)

B. \(4\frac{1}{2}\)

C. 3

D. 4

17- The perimeter of a square is 24 units. Each side of this square is the same length.
What is the length of one side of the square in units?

A. 4

B. 5

C. 6

D. 7

18- There are two different cards on the table.
There are 3 rows that have 13 red cards in each row.
There are 24 white cards.
How many cards are there on the table?

A. 59

B. 63

C. 68

D. 70

19- Which of the following comparison of fractions is true?

A. \(\frac{2}{5}=\frac{4}{10}\)

B. \(\frac{2}{5}> \frac{4}{10}\)

C.\(\frac{2}{5}< \frac{4}{10}\)

D. \(\frac{2}{5}< \frac{2}{10}\)

20- What is the value of \(A\) in the equation \(64 ÷ A = 8\)

A. 2

B. 4

C. 6

D. 8

Best 3rd Grade Common Core Math Prep Resource for 2026

Answers:

2- D
\(18 × 40 = 720\)

3- 42
3spaghetti with meatballs cost: \(3 × $10 = $30\)
2bowls of bean soup cost: \(2 × $6 = $12\)
3spaghetti with meatballs \(+\) 2bowls of bean soup cost: \($30 + $ 12 = $42\)

4- C
\(25 × 50 = 1250\)

5- 750
We round the number up to the nearest ten if the last digit in the number is 5, 6, 7, 8, or 9.
We round the number down to the nearest ten if the last digit in the number is 1, 2, 3, or 4.
If the last digit is 0, then we do not have to do any rounding, because it is already to the ten.
Therefore, rounded number of 745 to the nearest ten is 750.

6- C
\(1\) hour \(= 60\) minutes
\(6\) hours\( = 6 × 60\) minutes\(⇒ 6\) hours\( = 360\) minutes

7- C
\(55 × 14 = 770\)

8- A
The model for the fraction is divided into 100 equal parts. We shade 88 parts of these 100 parts that it’s equal to \(\frac{88}{100}\)

9- B
\(12 × 8 = 96\)

10- C
Subtract 109 red cards and 88 white cards. The answer is 21

11- A
\(3 × 7 \space ⎕ \space 6 = 126\)
\(21\space ⎕\space 6= 126 ⇒ 126=21×6\)

12- B
Liam gave 455 of his marbles to his friend that means his marbles decreased then he lost 116 of his marbles that means his marbles decreased again.

13- D
\(33 + B + 8 = 66 ⇒ 41+B =66 ⇒ B =66 – 41 =25\)

14- C
If he eats 6 meals in 1 day
So in a week (7 days) he eats \((7 × 6 = 42)\) meals.

15- A
All these fractions; \(\frac{3}{9},\frac{5}{15},\frac{24}{72}\) after simplification are equivalent to \(\frac{1}{3}\).

16- A
This shape shows 3 complete shaded triangles and a half of a triangle that is equal to \(3\frac{1}{2}\)

17- C
Perimeter of square formula \(= 4 ×\) side \(⇒ 24 = 4 ×\) side \(⇒\) side \(= 6\)

18- B
3 rows that have 13 red cards in each row means: \(3 × 13 = 39\) red cards
And there are 24 white cards on table too, so in total there are \(39 + 24 = 63\) cards on table

19- A
Simplify \(\frac{4}{10}\) that’s equal to \(\frac{2}{5}\)

20- D
\(64 ÷ 8 = 8\)

Looking for the best resource to help you succeed on the3rd Grade Common Core Math test?

The Best Books to Ace the 3rd Grade Common Core Math Test

Mastering Grade 3 Math The Ultimate Step by Step Guide to Acing 3rd Grade Math

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Recommended EffortlessMath Books

For a workbook that walks through every grade 3 Common Core standard, the Grade 3 Common Core Math Exercise Book covers each topic with worked examples your child can follow. For additional grade 3 practice tests, see the 6 Full-Length Grade 3 Math Practice Tests.

Frequently Asked Questions

What is the 3rd Grade Common Core Math test?

It’s a generic grade 3 math assessment built around the Common Core State Standards (CCSS) for math. Many state tests (SBAC, PARCC, SC Ready, and others) align to CCSS, so practice on Common Core content prepares your child for whichever state test their school uses.

How many questions are on a typical 3rd Grade Common Core Math test?

Real state tests aligned to CCSS at grade 3 typically have 40-55 items split across two sessions. This free practice gives you 20 sample questions — a manageable checkpoint that takes about 30 minutes.

Is a calculator allowed on Common Core Math tests at grade 3?

No. Calculator use isn’t allowed at grade 3 on any major Common Core-aligned state test. The grade-level content is designed to test fluency with addition, subtraction, multiplication, and division facts up to 100.

What are the 3rd Grade Common Core math domains?

Five domains: Operations and Algebraic Thinking (3.OA), Number and Operations in Base Ten (3.NBT), Number and Operations – Fractions (3.NF), Measurement and Data (3.MD), and Geometry (3.G). Most CCSS-aligned tests weight Operations and Fractions heaviest at grade 3.

What’s the most important grade 3 Common Core standard?

3.OA.7: fluently multiply and divide within 100. This is the big foundational fluency that everything in grades 4-5 depends on. If your child has solid multiplication facts up to 10×10 by the end of grade 3, they’re well set up for the rest of elementary math.

How is a Common Core Math test scored?

Specifics vary by state, but most CCSS-aligned tests use a scale score and four performance levels (often labeled Below, Approaching, Meets, Exceeds — or Levels 1-4). Meets/Level 3 is the standard grade-level expectation in most states.

How long should we prepare for a 3rd Grade Common Core Math test?

For most third graders, 4-6 weeks of light practice at 15-20 minutes a day works well. If multiplication facts aren’t automatic yet, spend the first 2 weeks on fact fluency. Then move to mixed practice that includes word problems and fraction work.

What’s the hardest part of 3rd Grade Common Core Math for most kids?

Three common stumbling blocks: multi-step word problems involving multiplication or division, fractions on a number line (3.NF.2), and area as the number of unit squares (3.MD.5-7). Spend extra time on these throughout the year — they show up on every CCSS-aligned grade 3 test.

Can my child retake a Common Core grade 3 state test?

No. State tests are given once per spring at grade 3. If your child misses the original date, a make-up is scheduled within the testing window. Otherwise, the next state test is the grade 4 version the following spring.

Where can I find more 3rd Grade Common Core practice?

EffortlessMath has step-by-step lessons for every grade 3 CCSS standard, plus the grade 3 Common Core workbook and additional full-length grade 3 practice tests.

Related EffortlessMath Lessons

If a topic on this page feels rusty, these short lessons go deeper:

• Multiply and divide by 10
• How to compare fractions
• Area and perimeter
• Place value
• How to round numbers