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Addition worksheet generator

Choose a number range for mental addition or written work with carrying. Check whether errors come from the calculation, place-value alignment or a missed carry.

Free to use · no sign-up · adjustable difficulty · print or save as PDF · separate answer key

The rule applies to the ones column. Keep the number range wide enough to generate different problems.
Mixed worksheet modules

Select one or more modules and set the question count for each. Leave all unchecked to use the page topic.

Advanced arithmetic settings
Operators
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This worksheet is made on your device. We do not ask for student details.

Name: ____________________Date: ____________________
1.17 + 27 =
2.17 + 23 =
3.32 + 20 =
4.5 + 17 =
5.27 + 8 =
6.21 + 15 =
7.30 + 44 =
8.24 + 7 =
9.25 + 15 =
10.33 + 39 =
11.40 + 35 =
12.34 + 16 =
13.15 + 26 =
14.9 + 48 =
15.39 + 33 =
16.26 + 31 =
17.30 + 27 =
18.48 + 26 =
19.30 + 43 =
20.30 + 23 =
Answer key
1. 44
2. 40
3. 52
4. 22
5. 35
6. 36
7. 74
8. 31
9. 40
10. 72
11. 75
12. 50
13. 41
14. 57
15. 72
16. 57
17. 57
18. 74
19. 73
20. 53
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What this worksheet practises

  • Recall addition facts efficiently
  • Align place values before calculating
  • Check a sum with subtraction or estimation

What appears on the sheet

  • Easy uses two values from 1 to 10; medium uses 5 to 50; hard uses 10 to 200.
  • Answers are exact whole-number sums.
  • Duplicate expressions are avoided when the selected range permits.

Make a sheet in three steps

Choose the level and question count, generate the sheet, then print or download it. Keep the seed if you want exactly the same questions again.

Algorithms

Choose a method for this problem type

CategoryNumber and operations · addition
Problem patternTwo-digit addition with regrouping
Worked example47 + 38 = 85

How to recognize it

  • Both addends have tens and ones.
  • The ones add to 10 or more, so one ten must be regrouped.
477785+30+8
A number line showing 47 plus 30, then plus 8, arriving at 85.
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Visual model

Open number line

Best for: Seeing how each addend changes the total

Keep 47 whole and add 38 in manageable jumps.

  1. Start at 47.
  2. Jump 30 to 77.
  3. Jump 8 to 85.

Trade-off: Clear and flexible, but takes more space than mental calculation.

02
Mental strategy

Make a friendly number

Best for: Mental calculation when one number is near a multiple of ten

Move 3 from 38 to 47 without changing the total.

  1. 47 + 3 = 50.
  2. 38 − 3 = 35.
  3. 50 + 35 = 85.

Trade-off: Fast when a friendly number is close; less obvious without secure number bonds.

03
Written algorithm

Column addition

Best for: A reliable method that scales to larger numbers

Align equal place values and regroup ten ones as one ten.

  1. Write ones beneath ones and tens beneath tens.
  2. 7 + 8 = 15: write 5 and regroup 1 ten.
  3. 4 + 3 + 1 = 8 tens.

Trade-off: General and compact, but the regrouped ten can become a memorized rule without place-value understanding.

Check the resultEstimate 50 + 40 ≈ 90, then check 85 − 38 = 47.

Standards

Grade and standards reference

These mappings are planning references, not certification of curriculum alignment.

AdditionGrades 1, 2, 3CCSS 1.OA–3.NBT
Vertical additionGrades 2, 3, 4CCSS 2.NBT.B.5 / 3.NBT.A.2
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03

Teaching notes

  • Ask learners to estimate before solving.
  • Use the same seed for a fair retry or review lesson.
04

Questions teachers and parents ask

How many addition problems should a worksheet have?

Choose 10 questions for a short check, or 20 or 30 for a longer sheet. Allow more working space when the questions need carrying or several written steps.

When should I introduce two-digit addition?

Check that the learner can separate tens and ones and add small numbers. Start with two-digit questions without carrying, then introduce carrying and ask the learner to record the extra ten.

Which level should I choose?

Start with easy for basic facts, medium for multi-digit work, and hard when the learner is ready for larger values.

05

Teach the idea, then practise it

Learning goals

  • Explain a sum as combining or increasing a quantity.
  • Use place value, known facts, and decomposition instead of counting every item.
  • Judge whether an answer is reasonable before checking it exactly.

Quick understanding checks

  • The estimate and exact answer are in the same reasonable range.
  • Subtracting either addend from the sum returns the other addend.

Suggested teaching progression

  1. RepresentModel sums with objects, ten frames, or an open number line.
  2. ExplainCompare counting on, making ten, and partitioning by place value.
  3. PractiseUse a short worksheet only after the chosen strategy makes sense.

Common misconceptions and responses

Digits are added without regard to place value.

Line up ones, tens, and hundreds, then name each column aloud before calculating.

A regrouped ten is written but not added in the next column.

Record the regrouped unit above the next place and include it explicitly in the spoken calculation.

06

Curriculum and teaching references

These external sources provide curriculum context or evidence-informed teaching guidance. They do not endorse this generator, and local curriculum requirements should take priority.

Content reviewExplanations and examples reviewed 9 October 2026. Found a problem? Send a correction

07

Focused worksheet sets

Addition within 20 worksheetsGenerate 20 printable addition questions using addends from 1 to 10, with a separate answer key.Addition within 100 worksheetsCreate printable addition practice with addends from 5 to 50 and sums no greater than 100.Two-digit addition worksheetsGenerate 20 printable two-digit addition questions with regrouping practice and a separate answer key.Three-addend addition worksheetsCreate 20 printable addition questions with three addends, with a separate answer key.Vertical addition worksheetsPrint 20 vertical addition problems with room for carrying and a separate answer key.
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