4th grade addition
4th grade addition (class 4): a quiz for kids, then every skill in order with lessons, a checklist and a 4-week plan for parents.
🧒 Kids: answer 10 grade 4 addition questions. Tap Check ✓ after each one!
What 4th grader learn about addition
In grade 4 (class 4), children add multi-digit whole numbers fluently with the standard method, with numbers up to 1,000,000. They round to any place to estimate, solve multi-step word problems with all four operations, and add fractions with the same denominator for the first time.
- 4.NBT.A.3: round multi-digit whole numbers to any place.
- 4.NBT.B.4: fluently add multi-digit whole numbers using the standard algorithm.
- 4.OA.A.3: solve multi-step word problems and judge answers with estimation.
- 4.NF.B.3: add and subtract fractions with like denominators.
Other grades: Kindergarten · 1st grade · 2nd grade · 3rd grade · 4th grade
The big idea in grade 4
By grade 4 the method is the same as in grade 3, just with more columns. The standards expect fluency with the standard algorithm for any multi-digit whole numbers.
The hard parts are carrying through zeros (4,095 + 2,907) and keeping big numbers lined up. Commas help: they mark the thousands, so a misplaced digit is easier to spot.
Estimation grows too. Children round to any place and use estimates to judge answers to multi-step problems. Adding fractions with the same denominator is new this year.
4th grade addition skills, in order
Work down the list. Each lesson explains the idea for parents with pictures and has a tool or quiz for your child.
| # | Skill (lesson) | Practice |
|---|---|---|
| 1 | 3-digit addition | Step-by-step tool |
| 2 | Multi-digit addition | Step-by-step tool |
| 3 | Regrouping across many columns | Column tool |
| 4 | Estimating sums | Estimate tool |
| 5 | Word problems | Bar model tool |
| 6 | Adding fractions | Fraction tool |
| 7 | Adding decimals (preview) | Decimal tool |
By the end of grade 4, your child should be able to…
- Add 4-digit and 5-digit numbers with the standard method.
- Regroup across several columns, including through zeros.
- Round to any place to estimate.
- Solve a multi-step word problem.
- Add fractions like 2/8 + 3/8.
- Check an addition by subtracting.
Unsure where your child is? The addition levels page has a short test for every step from counting to big numbers.
A 4-week plan for 4th grade addition
| When | Focus |
|---|---|
| Week 1 | Multi-digit addition with the standard method |
| Week 2 | Regrouping through zeros and big numbers |
| Week 3 | Rounding to any place and estimating |
| Week 4 | Multi-step word problems and adding like fractions |
Add 5 minutes of fact practice every day with the addition practice trainer, and a weekly addition speed test.
More for grade 4
All 4th grade math · CBSE class 4 maths parent guide · Addition quiz for every grade · Addition for kids
What to say to your child
A short script for teaching it the first time. Pause after each line and let your child do the next step.
- “Before we add 3,456 + 4,289, guess: about how much?” (3,000 + 4,000 = 7,000, or 3,500 + 4,300 = 7,800.)
- “Line up the places and start with the ones.” (6 + 9 = 15: write 5, carry 1.)
- “Keep going column by column.” (7,745.)
- “Close to our estimate?” (Yes.)
- “How could we check it another way?” (7,745 − 4,289 = 3,456.)
More worked examples
Example 1: 4-digit: 3,456 + 4,289
Ones 15, tens 14, hundreds 7, thousands 7: 7,745.
Example 2: through zeros: 4,095 + 2,907
5 + 7 = 12, 9 + 0 + 1 = 10, 0 + 9 + 1 = 10, 4 + 2 + 1 = 7: 7,002.
Example 3: fractions: 3/8 + 2/8
Add the tops, keep the bottom: 5/8.
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.
- 2,345 + 1,432
- 4,567 + 2,876
- 6,098 + 3,905
- 23,456 + 18,739
- Round 6,482 to the nearest 1,000
- Estimate 4,812 + 3,195
- 2/6 + 3/6
- Is 5,432 + 2,891 = 7,323 reasonable?
- A stadium sold 3,486 tickets on Friday and 4,275 on Saturday. How many tickets?
- A library has 2,450 books, buys 375 and gets 120 as gifts. How many books now?
Show the answers
- 3,777
- 7,443
- 10,003
- 42,195
- 6,000
- 5,000 + 3,000 = 8,000
- 5/6
- No: about 8,000; exact 8,323
- 7,761 tickets
- 2,945 books
Common mistakes
How to teach it at home
Five minutes a day
Short daily practice beats long weekend sessions.
Talk it through
Ask “how did you work that out?” for one problem each day.
Use real life
Shopping, scores, pages read and steps walked are all addition.
By grade
- Before: 3rd grade addition
- After: adding decimals in grade 5
Not sure where to start?
The free 4th grade math check-up tests every grade 4 topic in 18–22 minutes. It shows which topics are solid and which lesson to start with.
Worksheets and practice
3-digit addition worksheet: printable PDF with an answer key.
Last reviewed
Questions parents ask
What addition do 4th graders learn?
Fluent multi-digit addition with the standard method, rounding to any place, multi-step word problems and adding fractions with the same denominator.
Should a 4th grader still practice addition facts?
Yes, briefly. Slow facts make multi-digit addition slow and error-prone, so a weekly speed test is still useful.
Is there a 4th grade addition quiz?
Yes. The quiz at the top of this page has 10 mixed grade 4 addition questions. Each one is marked straight away, with a hint for every mistake. Play again for a fresh set, or try the addition quiz for every grade.
What is class 4 addition?
Class 4 in India and grade 4 in the US cover the same addition skills. This page lists them in order, starting with 3-digit addition, multi-digit addition, regrouping across many columns.
How much addition practice does a 4th grader need?
About 10 minutes a day: 5 minutes of facts with the trainer and 5 minutes on the current skill. Short daily practice works better than long weekly sessions.