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Grade 4 Challenge: Missing Digit Puzzles Worksheet with Answers

Grade 4 (US) · Year 5 (UK) · Class 4 (India) · Math

Unit 8: Going FurtherChallenge PuzzlesChallenge

Finding the hidden digit that makes an addition, subtraction or multiplication true. This free upper elementary worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Challenge: Missing Digit Puzzles

Grade 4 · Math

Score___ / 12

Name

Class

Date

Learning goal: Challenge Puzzles

Directions: Solve each problem. Show your work, then write your answer in the box.

Example

Find the missing digit: 12 + 17 = 2□

Answer: 9

  1. 1

    Find the missing digit: 721 + 60□ = 1323

    Answer
  2. 2

    Find the missing digit: 152 + 37 = □89

    Answer
  3. 3

    Find the missing digit: 790 - 12□ = 661

    Answer
  4. 4

    Find the missing digit: 497 + 75□ = 1250

    Answer
  5. 5

    Find the missing digit: 8□9 + 598 = 1437

    Answer
  6. 6

    Find the missing digit: 283 - 184 = □9

    Answer
  7. 7

    Find the missing digit: 478 + 673 = 1□51

    Answer
  8. 8

    Find the missing digit: 586 - 5□0 = 36

    Answer
  9. 9

    Find the missing digit: 538 + 849 = 1□87

    Answer
  10. 10

    Find the missing digit: 749 - 2□9 = 540

    Answer
  11. 11

    Find the missing digit: 742 + 858 = 1□00

    Answer
  12. 12

    Find the missing digit: 46□ - 163 = 304

    Answer

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Free printable worksheets with answer keys · aethelsystems.com/worksheets/math/4/challenge_missing_digits

Answer key (click to show)
  1. 1.2
  2. 2.1
  3. 3.9
  4. 4.3
  5. 5.3
  6. 6.9
  7. 7.1
  8. 8.5
  9. 9.3
  10. 10.0
  11. 11.6
  12. 12.7

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How to use this worksheet

  • Use it as a 10–15 minute warm-up or homework task rather than a long drill.
  • Ask students to show their working so you can see where a mistake started, not just that it happened.
  • Mark it with the answer key together, then print a fresh version of the same topic to practise the questions they missed.

Related worksheets

Challenge: Missing Digit Puzzles at other grades

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More Grade 4 Math worksheets

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Guides for teaching Challenge: Missing Digit Puzzles

Long Division Step by Step: An Easy Method (With Remainders)Divide, multiply, subtract, bring down — the four-step routine that makes long division manageable, with worked examples, remainders, zeros and two-digit divisors.What Are the Common Core and NGSS Standards? A Parent's GuideWhat learning standards are, how to read a code like 3.NF.A.1 or MS-PS1-2, what each grade covers in Math, English and Science, and how to use them at home.How to Help Your Child with Math Homework (Without Doing It for Them)Questions to ask instead of answers to give, what to do when the school's method looks different from yours, and how to handle frustration.

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