Decimals quiz
A free decimals quiz for grades 4 to 6 (class 4 to 6): 10 mixed questions, marked one at a time with hints.
🧒 Kids: pick your grade, then answer 10 questions. Tap Check ✓ after each one!
What each grade’s quiz covers
| Grade | Question types | Learn it |
|---|---|---|
| Grade 4 (class 4) | Tenths and hundredths in pictures, decimals in words, number lines, comparing, decimals to fractions, money, adding with the same places | 4th grade decimals |
| Grade 5 (class 5) | Thousandths, expanded form, rounding, ordering, adding and subtracting, × and ÷ by 10, 100 and 1,000, × and ÷ by whole numbers, estimating | 5th grade decimals |
| Grade 6 (class 6) | Adding, subtracting, multiplying and dividing multi-digit decimals, dividing by decimals, rounding, word problems, decimals to fractions | 6th grade decimals |
What is in the quiz?
Pick a grade and answer 10 mixed questions. There are shaded grids to name, decimals to compare and round, sums, differences, products, quotients and word problems. Each answer is marked straight away with a hint, and Play again gives a fresh quiz every time.
Decimal answers are typed with a point, like 3.25. The on-screen number pad has a point key, so it works on phones and tablets too. Trailing zeros don’t matter: 2.50 and 2.5 are both marked right.
Some questions ask for a fraction, using stacked top and bottom boxes. Any equivalent fraction is accepted. The hints show a method, not just the answer: a missed subtraction shows the points lined up, and a missed division shows the points moved.
How to use the quiz
- As a check-up: take the quiz for your child’s grade once a week and note the score.
- Read the hints: every wrong answer shows how to work it out. Talk through one together.
- Go back a grade if the score is under 6 out of 10. Many grade 6 mistakes are really shaky grade 5 place value.
- For one skill at a time, use the decimal practice tool and pick a skill.
- To track progress step by step, use the decimal levels.
You can link straight to a grade: grade 4 · grade 5 · grade 6.
What the score means
| Score | What to do next |
|---|---|
| 9 or 10 | Secure. Try the next grade, or the next decimal level. |
| 7 or 8 | Nearly there. Read the hints for the misses and retake in a few days. |
| 6 or less | Go back to the lessons for the question types missed, or try the grade below. |
Look at which questions were missed, not just the total. Three misses on rounding need a different fix from three misses on dividing.
The errors the quiz shows up
Decimal mistakes follow a few patterns. Spotting the pattern tells you what to teach next.
- Longer means bigger: 0.45 > 0.5. Add zeros so both have the same places. See comparing decimals.
- Lining up the ends: 3.5 + 1.25 = 1.60. Line up the points. See adding decimals.
- Missing zeros: 7 hundredths written as 0.7. See hundredths.
- Point in the wrong place after multiplying. Count the places and estimate. See multiplying decimals.
- Moving only one point when dividing by a decimal. See dividing decimals.
More decimal practice
- Decimal practice: 11 skills, from place value to money.
- Decimal calculator with steps, to check homework.
- Decimal levels: 10 steps from tenths to word problems.
- Decimal games: a race, a matching game and bingo.
- Printable adding and subtracting decimals worksheets and rounding decimals worksheets.
For teachers
The quiz works on a projector or interactive whiteboard. Share a link for a grade and each child gets their own random questions. Nothing needs a login, and no student data leaves the device. Scores are saved only in the browser.
Practice questions (answers below)
Ask these out loud or write them down. Check each answer, and ask “how did you get that?” for one or two.
- Grade 4: 35 of 100 squares shaded
- Grade 4: which is bigger, 0.6 or 0.58?
- Grade 4: 7/100 as a decimal
- Grade 5: round 4.762 to the nearest tenth
- Grade 5: 6.4 − 0.38
- Grade 5: 3.45 × 100
- Grade 5: 7.2 ÷ 3
- Grade 6: 2.35 × 1.4
- Grade 6: 4.2 ÷ 0.6
- Grade 6: 0.375 as a fraction
Show the answers
- 0.35
- 0.6
- 0.07
- 4.8
- 6.02
- 345
- 2.4
- 3.29
- 7
- 3/8
Common mistakes
How to teach it at home
Weekly check-in
Same day each week, same grade, note the score.
Beat your score
Children love beating last week’s number.
Explain one
Ask your child to teach you one question.
By grade
More for each grade: Grade 4 math and the CBSE class 4 maths guide; Grade 5 math and the CBSE class 5 maths guide; Grade 6 math and the CBSE class 6 maths guide.
Worksheets and practice
Adding and subtracting decimals worksheet: printable PDF with an answer key. · Make a fresh test
Last reviewed
Questions parents ask
Is this decimals quiz free?
Yes, free with no sign-up. Every quiz is new, so it can be used again and again.
Which grade quiz should my child take?
Their school grade. If they score under 6 out of 10, try the grade below; if they get 10 out of 10 twice, try the grade above.
How do I type a decimal answer?
Type the digits with a point, like 3.25. On phones and tablets, the number pad has a point key.
Does 2.50 count the same as 2.5?
Yes. Trailing zeros don’t change a decimal’s value, so both are marked right.
Can teachers use this quiz in class?
Yes. Share the link for a grade, such as /decimals/quiz/?g=5, and every child gets their own random questions.