4th grade math test: a free online check-up
A free 4th grade math test that finds the gaps, then tells you what to practice.
🧒 Kids: answer each question as well as you can. If you don’t know, press Skip. There are no wrong buttons!
What the check-up covers
The check-up follows what most US schools teach in grade 4 (Common Core 4.OA, 4.NBT, 4.NF and 4.MD). It has 9 topics. Each one has a grade 4 target and, for most, a few earlier steps that lead up to it.
| Topic | Grade 4 target | Earlier steps it checks if needed |
|---|---|---|
| Place value and rounding | Place value and rounding to 1,000,000 | Expanded form to 1,000 → Comparing and rounding to 1,000 |
| Adding and subtracting | Multi-digit addition and subtraction | 2-digit regrouping → 3-digit addition and subtraction |
| Multiplication | 2-digit multiplication | Times tables to 10 × 10 → Multiplying by 10 and 100 |
| Division | Long division by 1 digit | Division facts → Remainders |
| Factors and multiples | Prime and composite numbers | Factor pairs → Multiples |
| Fractions | Adding, subtracting and multiplying by a whole | Fractions on a number line → Equivalent and comparing fractions |
| Decimals | Comparing decimals | Tenths → Hundredths and money |
| Measurement units | Converting units | Units of length, mass and capacity |
| Area and angles | Measuring and finding angles | Area and perimeter of rectangles → Lines and types of angles |
How it works
Every topic starts with two questions at the grade 4 target. Two right answers mean the topic is solid, and the check moves on. One right answer brings a third question.
If the target is missed, the check steps down to the skill before it. If needed it steps down once more, until it finds what your child can already do. That is where practice should start.
A wrong answer is never wasted. Common mistakes, like rounding the wrong way, adding the top and bottom numbers of fractions, or putting the decimal point in the wrong place, are named in the report.
Fact answers are also timed quietly. A fact answered correctly after a long pause is still being worked out, not remembered, and the report says so.
How to read the report
- Solid (green): your child got both grade 4 questions right. Keep it fresh with a little mixed practice.
- Shaky (yellow): two out of three right. Your child mostly has it; a week of short practice usually makes it solid.
- Gap (red): the grade 4 target is not there yet. The report shows the step your child can already do and the next lesson to work on.
The report starts with one line: Start here. It is the first topic, in the usual teaching order, that is not yet solid. Work on that one first, because later topics often build on it.
You can print the report. It is also saved in this browser, so you can compare after a few weeks.
Tips for a fair result
- Choose a calm time, and let your child read the questions. The Read to me button reads them aloud.
- Don’t help or give hints. If your child is stuck, Skip is the right answer.
- If your child gets tired, take a break. Two short sittings are better than one rushed one.
After the check-up
Open the lesson linked for each gap and read it together first. Each lesson has a parent script, worked examples and a short quiz. Then use the topic’s levels test to confirm the step, and the worksheet for practice on paper.
Take the check-up again in three or four weeks. Gaps that turn into solid topics are the clearest sign that practice is working. For a whole-grade overview, see 4th grade math. For printable practice, use the worksheets and the math test generator.
Which grade’s check-up to choose
Pick the grade your child is in now, or has just finished. Early in the school year, the grade just finished is often the better choice. The new grade’s topics haven’t been taught yet. If most topics come back as gaps, try the 3rd grade check-up; if every topic is solid, try the 5th grade check-up. All grades are on the math check-up page.
Topic quizzes and levels
Every topic in the check-up has its own levels page. It is a ladder of short tests from the first step to the grade target: place value, addition, multiplication, division, factors and multiples, fractions, decimals, measurement and geometry. Use them after the check-up to pin down the exact step.
More grade 4 practice on paper
Each topic has a printable worksheet with an answer key. Try rounding large numbers, 3-digit subtraction, 2-digit by 1-digit multiplication, long division, prime and composite numbers, adding fractions with like denominators, tenths and hundredths, metric units and types of angles.
For teachers and tutors
Use the check-up at the start of the year or before a tutoring block. Each child takes it on their own device and prints or shows you the report. Nothing needs a login, and no student data leaves the device.
Last reviewed
Questions parents ask
What should a 4th grader know in math?
By the end of grade 4: place value and rounding to a million, multi-digit adding and subtracting, and 2-digit multiplication. Also long division by 1 digit, factors and primes, equivalent fractions, adding like fractions, decimals to hundredths, unit conversions and angles.
How long does the 4th grade math test take?
Usually 18 to 22 minutes and 18 to 28 questions. It asks more questions only where an answer is unclear, so a child who is secure finishes faster.
Is this a real assessment?
It is a screening check, not a formal test. It shows which topics are secure and where to look. The levels test for each topic then finds the exact step to practice.
Can my child use paper, fingers or a calculator?
Paper is needed for long division and 2-digit multiplication. A calculator is not allowed. Times tables should be instant by now, so fact questions are timed quietly.
What if my child is not in grade 4 yet?
Use it at the end of grade 3 to see what is coming, or in grade 5 to check the grade 4 basics. If most topics come back as gaps, the report suggests the grade 3 check-up.
Is my child’s data saved or shared?
The report is saved only in this browser so you can open it again. Nothing is sent to us, and there is no sign-up.