Workbook Detail

Function Machine Addition Easy — Set 6

Arithmetic B
easy Set 6 Form Exercise

Rule: x - 4. Find the missing output.

Show answer

Answer: 4

Rule
x - 4
Table
  • {"input":4,"output":0,"blank":false}
  • {"input":8,"output":null,"blank":true}
  • {"input":2,"output":0,"blank":false}
  • {"input":3,"output":0,"blank":false}
Visual
Type: inline-svg
Svg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#292F33" d="M16 0h4v5h-4z"/><path fill="#D1D3D4" d="M16 2h4v4h-4z"/><path fill="#A7A9AC" d="M18 2h2v4h-2z"/><path fill="#66757F" d="M18 19H5s1.355 8 4.875 14C13.394 39 18 33 18 33s4.606 6 8.125 0C29.645 27 31 19 31 19H18z"/><path fill="#99AAB5" d="M18 19H5s1.355 8 4.875 14C13.394 39 18 33 18 33V19z"/><path fill="#55ACEE" d="M0 30h36v6H0z"/><path fill="#E6E7E8" d="M30 9h-2.45l-.242-4H8.692l-.241 4H6v6h2.088l-.242 4h20.308l-.242-4H30z"/><path fill="#D1D3D4" d="M10 15h16v4H10z"/><path fill="#6D6E71" d="M8 11h20v2H8z"/><path fill="#BCBEC0" d="M10 7h16v2H10z"/><path fill="#BE1931" d="M5.913 23h24.174c.201-.747.368-1.427.5-2H5.413c.132.573.299 1.253.5 2z"/><path fill="#A0041E" d="M18 23h12.087c.201-.747.368-1.427.5-2H18v2z"/><path fill="#BCBEC0" d="M12 17h12v2H12z"/><path fill="#58595B" d="M16 0h2v2h-2z"/></g></svg>
AltText: ship
Placement: before-question
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EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f6a2","name":"ship","count":1,"role":"badge"}]

Rule: x + 3. Find the missing output.

Show answer

Answer: 15

Rule
x + 3
Table
  • {"input":8,"output":11,"blank":false}
  • {"input":9,"output":12,"blank":false}
  • {"input":9,"output":12,"blank":false}
  • {"input":12,"output":null,"blank":true}

Rule: x - 1. Find the missing output.

Show answer

Answer: 1

Rule
x - 1
Table
  • {"input":11,"output":10,"blank":false}
  • {"input":6,"output":5,"blank":false}
  • {"input":2,"output":null,"blank":true}
  • {"input":7,"output":6,"blank":false}
Visual
Type: inline-svg
Svg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#99AAB5" d="M6.5 24C3.462 24 1 26.463 1 29.5S3.462 35 6.5 35s5.5-2.463 5.5-5.5S9.538 24 6.5 24zm0 9C4.567 33 3 31.433 3 29.5S4.567 26 6.5 26s3.5 1.567 3.5 3.5S8.433 33 6.5 33zm23-9c-3.037 0-5.5 2.463-5.5 5.5s2.463 5.5 5.5 5.5 5.5-2.463 5.5-5.5-2.463-5.5-5.5-5.5zm0 9c-1.934 0-3.5-1.567-3.5-3.5s1.566-3.5 3.5-3.5 3.5 1.567 3.5 3.5-1.566 3.5-3.5 3.5z"/><path fill="#292F33" d="M6.5 22.914c-3.59 0-6.5 2.91-6.5 6.5s2.91 6.5 6.5 6.5 6.5-2.91 6.5-6.5-2.91-6.5-6.5-6.5zm0 11c-2.485 0-4.5-2.015-4.5-4.5s2.015-4.5 4.5-4.5 4.5 2.015 4.5 4.5-2.015 4.5-4.5 4.5zm23-11c-3.59 0-6.5 2.91-6.5 6.5s2.91 6.5 6.5 6.5 6.5-2.91 6.5-6.5-2.91-6.5-6.5-6.5zm0 11c-2.485 0-4.5-2.015-4.5-4.5s2.015-4.5 4.5-4.5 4.5 2.015 4.5 4.5-2.015 4.5-4.5 4.5z"/><path fill="#77B255" d="M7.001 27.051c-2 4 .999 2.587 1.999.587.905-1.811 3.444-2.429 4.66-.375C12.708 24.213 9.863 22 6.5 22c-1.374 0-2.657.375-3.764 1.02 2.833.165 5.366 1.831 4.265 4.031z"/><path fill="#99AAB5" d="M30 29c0 .553-.447 1-1 1h-9c-.553 0-1-.447-1-1 0-.553.447-1 1-1h9c.553 0 1 .447 1 1z"/><path fill="#99AAB5" d="M29.923 30.306c-.433.344-1.062.272-1.405-.161L22.917 23.1c-.344-.433-.271-1.062.16-1.405.433-.344 1.062-.272 1.405.161l5.601 7.045c.344.432.271 1.061-.16 1.405z"/><path fill="#CCD6DD" d="M12.463 20.367c.466.297.602.915.304 1.381L7.918 29.33c-.298.465-.916.602-1.381.303-.466-.297-.602-.915-.304-1.381l4.849-7.582c.298-.465.916-.602 1.381-.303z"/><path fill="#77B255" d="M10.529 17.368C9.718 17.953 6 19 9 21s5.094 4.125 5.094 6c0 2.665-.656 4 .906 4h7s-1-4 2-7 5-2 8-3c1.897-.633 4-2 4-3s0-2-2-1-1 1.551-3 .551-3.16.449-4.16.449-7.614 1.68-8.62-.049C17.667 17 16.434 16 14.616 16c-1.318 0-3.116.667-4.087 1.368z"/><path fill="#66757F" d="M21 29c0 1.104-.895 2-2 2-1.104 0-2-.896-2-2s.896-2 2-2c1.105 0 2 .896 2 2z"/><path fill="#CCD6DD" d="M25.8 27.975l9.277-3.732 1.12 2.783-9.278 3.732z"/><path fill="#FFF" d="M26.173 28.902l9.277-3.732.373.928-9.277 3.732z"/><path fill="#66757F" d="M26.546 29.83l9.277-3.731.373.927-9.277 3.732z"/><path fill="#292F33" d="M19 18.137c1.366.385 5.645-.007 6.802-.098 1.157-.09 1.594.451 0 1.25C24 20.19 20.188 22.45 19 22.914c-.998.391-4.5-1.211-4.917-1.696-.416-.486 3.745-3.411 4.917-3.081zM34 17c-1.549.04-3 0-4 0s-1.158 1.102 1.549 1.102S34 17 34 17z"/><path fill="#77B255" d="M3.736 16.958c0-1.465 4.456-5.134 3.975-4.476-1.15 1.573-.489 3.476 1.487 3.476S11.907 22.477 9 21c-2.907-1.477-5.264-3.323-5.264-4.042z"/><path fill="#CCD6DD" d="M8.606 10.569c.704.61.345 1.692-1.045 3.485-1.391 1.793-3.583 2.521-2.359.542s3.404-4.027 3.404-4.027z"/><path fill="#66757F" d="M10.529 17.368c-.19.476-.73.706-1.206.516l-.134-.054c-.476-.19-.707-.73-.516-1.206l.798-1.992c.19-.476.73-.707 1.206-.516l.135.054c.476.19.707.73.516 1.206l-.799 1.992z"/><path fill="#292F33" d="M12.911 13.991c.094.26-.04.546-.3.64l-1.881.679c-.26.094-.546-.041-.64-.301-.094-.26.04-.546.3-.64l1.881-.679c.26-.094.546.041.64.301z"/></g></svg>
AltText: motorcycle
Placement: before-question
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IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f3cd","name":"motorcycle","count":1,"role":"badge"}]

Rule: x + 5. Find the missing output.

Show answer

Answer: 8

Rule
x + 5
Table
  • {"input":3,"output":8,"blank":false}
  • {"input":1,"output":6,"blank":false}
  • {"input":5,"output":10,"blank":false}
  • {"input":3,"output":null,"blank":true}
Visual
Type: inline-svg
Svg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#939598" d="M0 34h36v2H0z"/><path fill="#231F20" d="M6 27h29v5H6z"/><circle fill="#58595B" cx="6.999" cy="32" r="3"/><circle fill="#58595B" cx="12.999" cy="32" r="3"/><circle fill="#A0041E" cx="6.999" cy="32" r="1.5"/><circle fill="#A0041E" cx="12.999" cy="32" r="1.5"/><path fill="#DD2E44" d="M5 33H1c-1 0-1.5-.5 0-2l4-4c1-1 2-2.001 2 0v4c0 2-.001 2-2 2z"/><path fill="#231F20" d="M8 20c0 3.313-1.343 6-3 6s-3-2.687-3-6c0-3.314 1.343-6 3-6s3 2.686 3 6z"/><path fill="#6D6E71" d="M11 15H7L5 7h8z"/><path fill="#414042" d="M26 25c0 1.104-.896 2-2 2H6c-1.104 0-2-.896-2-2V15c0-1.104.896-2 2-2h18c1.104 0 2 .896 2 2v10z"/><path fill="#C1694F" d="M13 26c0 .553-.448 1-1 1s-1-.447-1-1V13c0-.552.448-1 1-1s1 .448 1 1v13zm6 0c0 .553-.447 1-1 1-.553 0-1-.447-1-1V13c0-.552.447-1 1-1 .553 0 1 .448 1 1v13z"/><path fill="#808285" d="M36 26c0 .553-.447 1-1 1H7c-.552 0-1-.447-1-1 0-.553.448-1 1-1h28c.553 0 1 .447 1 1z"/><circle fill="#58595B" cx="29.999" cy="31" r="4"/><circle fill="#58595B" cx="21.999" cy="31" r="4"/><circle fill="#A0041E" cx="29.999" cy="31" r="2"/><circle fill="#A0041E" cx="21.999" cy="31" r="2"/><path fill="#414042" d="M12 3H6c-.552 0-1 .448-1 1v3h8V4c0-.552-.448-1-1-1z"/><path fill="#BE1931" d="M23 7h12v18H23z"/><path fill="#A0041E" d="M36 6c0 .552-.447 1-1 1H23c-.553 0-1-.448-1-1s.447-1 1-1h12c.553 0 1 .448 1 1z"/><path fill="#EA596E" d="M25 18h8v5h-8z"/><path fill="#F4900C" d="M30 32h-8c-.127 0-.253-.024-.371-.071L16.807 30H10c-.552 0-1-.447-1-1s.448-1 1-1h7c.128 0 .253.024.372.071L22.192 30H30c.553 0 1 .447 1 1s-.447 1-1 1z"/><path fill="#55ACEE" d="M33 10c0-.552-.447-1-1-1h-6c-.553 0-1 .448-1 1v5c0 .552.447 1 1 1h6c.553 0 1-.448 1-1v-5z"/></g></svg>
AltText: train
Placement: before-question
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EffectiveProvider: twemoji
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IconSize: 36
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Placement: before-question
Items: [{"ref":"twemoji:1f682","name":"train","count":1,"role":"badge"}]

Rule: x - 1. Find the missing output.

Show answer

Answer: 2

Rule
x - 1
Table
  • {"input":7,"output":6,"blank":false}
  • {"input":2,"output":1,"blank":false}
  • {"input":3,"output":null,"blank":true}
  • {"input":2,"output":1,"blank":false}
Visual
Type: inline-svg
Svg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#66757F" d="M30 23.828c-.391.392-1.023.392-1.414 0l-1.414-1.414c-.392-.391-.392-1.024 0-1.414L30 18.172c.391-.391 1.023-.391 1.414 0l1.414 1.414c.392.391.392 1.024 0 1.414L30 23.828zm-15-15c-.391.392-1.023.392-1.414 0l-1.414-1.414c-.392-.391-.392-1.023 0-1.414L15 3.172c.391-.391 1.023-.391 1.414 0l1.414 1.414c.392.391.392 1.023 0 1.414L15 8.828z"/><path fill="#55ACEE" d="M2 22c2 0 11 1 11 1s1 9 1 11-2 2-3 1-4-6-4-6-5-3-6-4-1-3 1-3zM4 6.039C7 6 29 7 29 7s.924 22 .962 25c.038 3-2.763 4.002-3.862.001S21 15 21 15 7.045 10.583 3.995 9.898C0 9 .999 6.077 4 6.039z"/><path fill="#CCD6DD" d="M27 3c2-2 7-3 8-2s0 6-2 8-19 18-19 18-6.5 4.5-8 3 3-8 3-8S25 5 27 3z"/><path fill="#66757F" d="M14 22s.5.5-4 5-5 4-5 4-.5-.5 4-5 5-4 5-4zM29 4c1.657 0 3 1.343 3 3h.805c.114-.315.195-.645.195-1 0-1.657-1.343-3-3-3-.355 0-.685.081-1 .195V4z"/></g></svg>
AltText: airplane
Placement: before-question
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Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:2708","name":"airplane","count":1,"role":"badge"}]

Rule: x - 1. Find the missing output.

Show answer

Answer: 10

Rule
x - 1
Table
  • {"input":9,"output":8,"blank":false}
  • {"input":11,"output":null,"blank":true}
  • {"input":8,"output":7,"blank":false}
  • {"input":5,"output":4,"blank":false}
Visual
Type: inline-svg
Svg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#939598" d="M0 34h36v2H0z"/><path fill="#58595B" d="M8 32c0-1.657-1.344-3-3-3s-3 1.343-3 3 1.343 3 3 3 3-1.343 3-3z"/><path fill="#292F33" d="M7 32c0-1.105-.896-2-2-2s-2 .895-2 2 .896 2 2 2 2-.895 2-2z"/><path fill="#58595B" d="M16 32c0-1.657-1.344-3-3-3s-3 1.343-3 3 1.343 3 3 3 3-1.343 3-3z"/><path fill="#292F33" d="M15 32c0-1.105-.896-2-2-2s-2 .895-2 2 .896 2 2 2 2-.895 2-2z"/><circle fill="#58595B" cx="32" cy="32" r="3"/><circle fill="#292F33" cx="32" cy="32" r="2"/><circle fill="#58595B" cx="24" cy="32" r="3"/><circle fill="#292F33" cx="24" cy="32" r="2"/><path fill="#5C913B" d="M0 28h36v4H0z"/><path fill="#FFE8B6" d="M0 16h36v12H0z"/><path fill="#FFAC33" d="M0 26h36v2H0z"/><path fill="#77B255" d="M32.555 14H3.445C1.969 14 .693 14.81 0 16h36c-.693-1.19-1.969-2-3.445-2z"/><path d="M5 22c0 .553-.447 1-1 1H2c-.552 0-1-.447-1-1v-2c0-.553.448-1 1-1h2c.553 0 1 .447 1 1v2zm6 0c0 .553-.447 1-1 1H8c-.552 0-1-.447-1-1v-2c0-.553.448-1 1-1h2c.553 0 1 .447 1 1v2zm6 0c0 .553-.447 1-1 1h-2c-.553 0-1-.447-1-1v-2c0-.553.447-1 1-1h2c.553 0 1 .447 1 1v2zm6 0c0 .553-.447 1-1 1h-2c-.553 0-1-.447-1-1v-2c0-.553.447-1 1-1h2c.553 0 1 .447 1 1v2zm6 0c0 .553-.447 1-1 1h-2c-.553 0-1-.447-1-1v-2c0-.553.447-1 1-1h2c.553 0 1 .447 1 1v2zm6 0c0 .553-.447 1-1 1h-2c-.553 0-1-.447-1-1v-2c0-.553.447-1 1-1h2c.553 0 1 .447 1 1v2z" fill="#55ACEE"/></g></svg>
AltText: steam train
Placement: before-question
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Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f683","name":"steam-train","count":1,"role":"badge"}]

Rule: x + 2. Find the missing output.

Show answer

Answer: 14

Rule
x + 2
Table
  • {"input":11,"output":13,"blank":false}
  • {"input":12,"output":null,"blank":true}
  • {"input":8,"output":10,"blank":false}
  • {"input":12,"output":14,"blank":false}

Rule: x + 4. Find the missing output.

Show answer

Answer: 7

Rule
x + 4
Table
  • {"input":4,"output":8,"blank":false}
  • {"input":5,"output":9,"blank":false}
  • {"input":9,"output":13,"blank":false}
  • {"input":3,"output":null,"blank":true}
← More Arithmetic

Teaching Notes

Practice function machine addition with free easy printable worksheets. Uniquely generated — reinforce key math skills.

Frequently Asked Questions

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Workbook Detail

Function Machine Addition Easy — Set 6

Arithmetic B
easy Set 6 Form Exercise

Rule: x × 2. Find the missing output.

Show answer

Answer: 8

Rule
x × 2
Table
  • {"input":6,"output":12,"blank":false}
  • {"input":5,"output":10,"blank":false}
  • {"input":4,"output":null,"blank":true}
  • {"input":11,"output":22,"blank":false}

Rule: x - 2. Find the missing output.

Show answer

Answer: 10

Rule
x - 2
Table
  • {"input":7,"output":5,"blank":false}
  • {"input":12,"output":null,"blank":true}
  • {"input":9,"output":7,"blank":false}
  • {"input":11,"output":9,"blank":false}
Visual
Type: inline-svg
Svg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#99AAB5" d="M6.5 24C3.462 24 1 26.463 1 29.5S3.462 35 6.5 35s5.5-2.463 5.5-5.5S9.538 24 6.5 24zm0 9C4.567 33 3 31.433 3 29.5S4.567 26 6.5 26s3.5 1.567 3.5 3.5S8.433 33 6.5 33zm23-9c-3.037 0-5.5 2.463-5.5 5.5s2.463 5.5 5.5 5.5 5.5-2.463 5.5-5.5-2.463-5.5-5.5-5.5zm0 9c-1.934 0-3.5-1.567-3.5-3.5s1.566-3.5 3.5-3.5 3.5 1.567 3.5 3.5-1.566 3.5-3.5 3.5z"/><path fill="#292F33" d="M6.5 22.914c-3.59 0-6.5 2.91-6.5 6.5s2.91 6.5 6.5 6.5 6.5-2.91 6.5-6.5-2.91-6.5-6.5-6.5zm0 11c-2.485 0-4.5-2.015-4.5-4.5s2.015-4.5 4.5-4.5 4.5 2.015 4.5 4.5-2.015 4.5-4.5 4.5zm23-11c-3.59 0-6.5 2.91-6.5 6.5s2.91 6.5 6.5 6.5 6.5-2.91 6.5-6.5-2.91-6.5-6.5-6.5zm0 11c-2.485 0-4.5-2.015-4.5-4.5s2.015-4.5 4.5-4.5 4.5 2.015 4.5 4.5-2.015 4.5-4.5 4.5z"/><path fill="#77B255" d="M7.001 27.051c-2 4 .999 2.587 1.999.587.905-1.811 3.444-2.429 4.66-.375C12.708 24.213 9.863 22 6.5 22c-1.374 0-2.657.375-3.764 1.02 2.833.165 5.366 1.831 4.265 4.031z"/><path fill="#99AAB5" d="M30 29c0 .553-.447 1-1 1h-9c-.553 0-1-.447-1-1 0-.553.447-1 1-1h9c.553 0 1 .447 1 1z"/><path fill="#99AAB5" d="M29.923 30.306c-.433.344-1.062.272-1.405-.161L22.917 23.1c-.344-.433-.271-1.062.16-1.405.433-.344 1.062-.272 1.405.161l5.601 7.045c.344.432.271 1.061-.16 1.405z"/><path fill="#CCD6DD" d="M12.463 20.367c.466.297.602.915.304 1.381L7.918 29.33c-.298.465-.916.602-1.381.303-.466-.297-.602-.915-.304-1.381l4.849-7.582c.298-.465.916-.602 1.381-.303z"/><path fill="#77B255" d="M10.529 17.368C9.718 17.953 6 19 9 21s5.094 4.125 5.094 6c0 2.665-.656 4 .906 4h7s-1-4 2-7 5-2 8-3c1.897-.633 4-2 4-3s0-2-2-1-1 1.551-3 .551-3.16.449-4.16.449-7.614 1.68-8.62-.049C17.667 17 16.434 16 14.616 16c-1.318 0-3.116.667-4.087 1.368z"/><path fill="#66757F" d="M21 29c0 1.104-.895 2-2 2-1.104 0-2-.896-2-2s.896-2 2-2c1.105 0 2 .896 2 2z"/><path fill="#CCD6DD" d="M25.8 27.975l9.277-3.732 1.12 2.783-9.278 3.732z"/><path fill="#FFF" d="M26.173 28.902l9.277-3.732.373.928-9.277 3.732z"/><path fill="#66757F" d="M26.546 29.83l9.277-3.731.373.927-9.277 3.732z"/><path fill="#292F33" d="M19 18.137c1.366.385 5.645-.007 6.802-.098 1.157-.09 1.594.451 0 1.25C24 20.19 20.188 22.45 19 22.914c-.998.391-4.5-1.211-4.917-1.696-.416-.486 3.745-3.411 4.917-3.081zM34 17c-1.549.04-3 0-4 0s-1.158 1.102 1.549 1.102S34 17 34 17z"/><path fill="#77B255" d="M3.736 16.958c0-1.465 4.456-5.134 3.975-4.476-1.15 1.573-.489 3.476 1.487 3.476S11.907 22.477 9 21c-2.907-1.477-5.264-3.323-5.264-4.042z"/><path fill="#CCD6DD" d="M8.606 10.569c.704.61.345 1.692-1.045 3.485-1.391 1.793-3.583 2.521-2.359.542s3.404-4.027 3.404-4.027z"/><path fill="#66757F" d="M10.529 17.368c-.19.476-.73.706-1.206.516l-.134-.054c-.476-.19-.707-.73-.516-1.206l.798-1.992c.19-.476.73-.707 1.206-.516l.135.054c.476.19.707.73.516 1.206l-.799 1.992z"/><path fill="#292F33" d="M12.911 13.991c.094.26-.04.546-.3.64l-1.881.679c-.26.094-.546-.041-.64-.301-.094-.26.04-.546.3-.64l1.881-.679c.26-.094.546.041.64.301z"/></g></svg>
AltText: motorcycle
Placement: before-question
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EffectiveProvider: twemoji
RequestedProvider: twemoji
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Placement: before-question
Items: [{"ref":"twemoji:1f3cd","name":"motorcycle","count":1,"role":"badge"}]

Rule: x + 3. Find the missing output.

Show answer

Answer: 5

Rule
x + 3
Table
  • {"input":9,"output":12,"blank":false}
  • {"input":9,"output":12,"blank":false}
  • {"input":2,"output":null,"blank":true}
  • {"input":9,"output":12,"blank":false}

Rule: x + 2. Find the missing output.

Show answer

Answer: 4

Rule
x + 2
Table
  • {"input":3,"output":5,"blank":false}
  • {"input":2,"output":null,"blank":true}
  • {"input":6,"output":8,"blank":false}
  • {"input":9,"output":11,"blank":false}

Rule: x + 5. Find the missing output.

Show answer

Answer: 11

Rule
x + 5
Table
  • {"input":5,"output":10,"blank":false}
  • {"input":10,"output":15,"blank":false}
  • {"input":6,"output":null,"blank":true}
  • {"input":11,"output":16,"blank":false}

Rule: x + 2. Find the missing output.

Show answer

Answer: 12

Rule
x + 2
Table
  • {"input":10,"output":12,"blank":false}
  • {"input":2,"output":4,"blank":false}
  • {"input":10,"output":null,"blank":true}
  • {"input":12,"output":14,"blank":false}

Rule: x - 2. Find the missing output.

Show answer

Answer: 8

Rule
x - 2
Table
  • {"input":11,"output":9,"blank":false}
  • {"input":2,"output":0,"blank":false}
  • {"input":10,"output":8,"blank":false}
  • {"input":10,"output":null,"blank":true}
Visual
Type: inline-svg
Svg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#66757F" d="M16.26 26h2v5h-2zm-8 0h2v5h-2z"/><ellipse fill="#99AAB5" cx="6.259" cy="3" rx="6" ry="1"/><ellipse fill="#99AAB5" cx="20.259" cy="3" rx="6" ry="1"/><path fill="#99AAB5" d="M12.26 3h2v6h-2z"/><ellipse fill="#66757F" cx="13.259" cy="3" rx="2" ry="1"/><path fill="#FFCC4D" d="M34.259 10c0-3 0-7-1-7s-3 4-4 6 5 1 5 1z"/><path fill="#FFCC4D" d="M34.259 10c0-2.209-8-3-19-3h-2C6.632 7 .509 12.451.509 18.25S4.259 28 13.259 28s12-4.701 12-10.5c0-.881-.138-1.731-.371-2.549C29.259 14 34.259 12.006 34.259 10z"/><path fill="#3B88C3" d="M4.259 13c-2.091 2.918-3.068 7.589 1.213 7.784 4.787.216 6.787.216 7.85-2.372 1.364-3.32.937-7.413-.276-8.195-2.32-1.497-6.695-.135-8.787 2.783zm16.841-.465C23.259 16 23.17 18.696 19.259 20c-3 1-4-2-3.841-5.535.112-2.483.206-4.195 1.841-4.465 1.447-.24 2.526.426 3.841 2.535z"/><path fill="#99AAB5" d="M31.441 7.114c.903 1.273 1.271 2.564.82 2.884-.45.32-1.548-.454-2.451-1.726-.903-1.273-1.271-2.564-.82-2.884.45-.321 1.547.453 2.451 1.726z"/><path fill="#99AAB5" d="M34.72 11.735c.909 1.279 1.28 2.575.83 2.894-.45.32-1.553-.458-2.46-1.737-.909-1.279-1.279-2.576-.829-2.896.45-.318 1.551.46 2.459 1.739z"/><path fill="#66757F" d="M33.076 9.419c.319.45.214 1.074-.236 1.394-.45.32-1.074.214-1.395-.236-.319-.45-.214-1.074.237-1.394.451-.321 1.075-.214 1.394.236z"/><path fill="#99AAB5" d="M25.26 32c0 1.104-.896 2-2 2h-20c-1.104 0-2-.896-2-2s.896-2 2-2h20c1.104 0 2 .896 2 2z"/></g></svg>
AltText: helicopter
Placement: before-question
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f681","name":"helicopter","count":1,"role":"badge"}]

Rule: x × 3. Find the missing output.

Show answer

Answer: 15

Rule
x × 3
Table
  • {"input":5,"output":null,"blank":true}
  • {"input":3,"output":9,"blank":false}
  • {"input":1,"output":3,"blank":false}
  • {"input":6,"output":18,"blank":false}
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Teaching Notes

Practice function machine addition with free printable worksheets. Uniquely generated — reinforce key math skills with every set.

Frequently Asked Questions

How do I use this Function Machine Addition Easy Worksheets worksheet?

Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.

Is there an answer key?

Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.