Workbook Detail

Function Machine Subtraction Easy — Set 4

Arithmetic B
easy Set 4 Form Exercise

Rule: x × 2. Find the missing output.

Show answer

Answer: 16

Rule
x × 2
Table
  • {"input":7,"output":14,"blank":false}
  • {"input":4,"output":8,"blank":false}
  • {"input":8,"output":null,"blank":true}
  • {"input":4,"output":8,"blank":false}

Rule: x - 2. Find the missing output.

Rule
x - 2
Table
  • {"input":5,"output":3,"blank":false}
  • {"input":12,"output":10,"blank":false}
  • {"input":1,"output":null,"blank":true}
  • {"input":1,"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="#E1E8ED" d="M32 22s-2-8-5-8H16c-3 0-7 7-7 7s-8 1-8 5v2c0 .09.021.175.026.263C.417 28.605 0 29.251 0 30c0 1.104.896 2 2 2h30c2.209 0 4-1.791 4-4v-2c0-2.209-1.791-4-4-4z"/><path fill="#292F33" d="M1 26v2c0 .09.021.175.026.263C.417 28.605 0 29.251 0 30c0 1.104.896 2 2 2h30c2.209 0 4-1.791 4-4v-2c0-.348-.059-.679-.142-1H1.201c-.117.312-.201.641-.201 1z"/><path fill="#66757F" d="M15.91 32c.055-.326.09-.658.09-1 0-3.313-2.686-6-6-6-3.313 0-6 2.687-6 6 0 .342.035.674.09 1h11.82zm17 0c.055-.326.09-.658.09-1 0-3.313-2.687-6-6-6s-6 2.687-6 6c0 .342.035.674.09 1h11.82z"/><circle fill="#292F33" cx="10" cy="31" r="4"/><circle fill="#E1E8ED" cx="10" cy="31" r="2"/><circle fill="#292F33" cx="27" cy="31" r="4"/><circle fill="#E1E8ED" cx="27" cy="31" r="2"/><path fill="#DD2E44" d="M21 13c0 .552-.447 1-1 1h-3c-.552 0-1-.448-1-1s.448-1 1-1h3c.553 0 1 .448 1 1z"/><path fill="#55ACEE" d="M22 13c0 .552-.447 1-1 1h-2c-.552 0-1-.448-1-1s.448-1 1-1h2c.553 0 1 .448 1 1zm1 8h7s-2-5-3-5h-4v5zm-2-5h-5c-2 0-5 5-5 5h10v-5z"/></g></svg>
AltText: police car
Placement: before-question
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f693","name":"police-car","count":1,"role":"badge"}]

Rule: x - 2. Find the missing output.

Show answer

Answer: 3

Rule
x - 2
Table
  • {"input":10,"output":8,"blank":false}
  • {"input":9,"output":7,"blank":false}
  • {"input":5,"output":null,"blank":true}
  • {"input":8,"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="#DD2E44" d="M36 27c0 2.209-1.791 4-4 4H4c-2.209 0-4-1.791-4-4v-3c0-2.209 1.791-4 4-4h28c2.209 0 4 1.791 4 4v3z"/><path fill="#FFCC4D" d="M19 13l-.979-1H7.146C4 12 3 14 3 14l-3 5.959V25h19V13z"/><path fill="#55ACEE" d="M9 20H2l2-4s1-2 3-2h2v6z"/><circle fill="#292F33" cx="9" cy="31" r="4"/><circle fill="#CCD6DD" cx="9" cy="31" r="2"/><circle fill="#292F33" cx="27" cy="31" r="4"/><circle fill="#CCD6DD" cx="27" cy="31" r="2"/><path fill="#CCD6DD" d="M32 8H17c-2.209 0-4 1.791-4 4v13h23V12c0-2.209-1.791-4-4-4z"/></g></svg>
AltText: truck
Placement: before-question
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f69a","name":"truck","count":1,"role":"badge"}]

Rule: x - 2. Find the missing output.

Show answer

Answer: 7

Rule
x - 2
Table
  • {"input":7,"output":5,"blank":false}
  • {"input":9,"output":null,"blank":true}
  • {"input":5,"output":3,"blank":false}
  • {"input":6,"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="#EA596E" d="M7 24c1.957 0 3.633 1.135 4.455 2.772l3.477-1.739C13.488 22.058 10.446 20 6.916 20c-1.301 0-2.534.285-3.649.787l1.668 3.67C5.566 24.17 6.262 24 7 24zm22 0c1.467 0 2.772.643 3.688 1.648l2.897-2.635C33.952 21.169 31.573 20 28.916 20c-3.576 0-6.652 2.111-8.073 5.15l3.648 1.722C25.293 25.18 27.003 24 29 24z"/><path fill="#292F33" d="M7 22c-3.866 0-7 3.134-7 7s3.134 7 7 7 7-3.134 7-7-3.133-7-7-7zm0 12c-2.761 0-5-2.238-5-5s2.239-5 5-5 5 2.238 5 5-2.238 5-5 5zm22-12c-3.865 0-7 3.134-7 7s3.135 7 7 7c3.867 0 7-3.134 7-7s-3.133-7-7-7zm0 12c-2.761 0-5-2.238-5-5s2.239-5 5-5c2.762 0 5 2.238 5 5s-2.238 5-5 5z"/><path fill="#DD2E44" d="M29.984 28.922c-.005-.067-.021-.132-.04-.198-.019-.065-.04-.126-.071-.186-.013-.024-.015-.052-.029-.075l-7-11c-.297-.466-.914-.604-1.381-.307-.299.19-.444.513-.445.843H12c-.552 0-1 .447-1 1 0 .553.448 1 1 1h10c.027 0 .05-.014.077-.016L27.178 28H18c-.552 0-1 .447-1 1s.448 1 1 1h11.001c.116 0 .23-.028.343-.069.034-.013.064-.027.097-.043.031-.017.066-.024.097-.044.03-.02.048-.051.075-.072.055-.044.103-.089.147-.143.041-.049.074-.099.104-.154.03-.056.055-.11.075-.172.021-.066.033-.132.04-.201.004-.036.021-.066.021-.102 0-.027-.014-.051-.016-.078z"/><path fill="#DD2E44" d="M21.581 16l-2.899 8.117-5.929-6.775c-.364-.415-.996-.459-1.411-.094-.415.364-.457.995-.094 1.411l6.664 7.615-.854 2.39c-.185.519.086 1.092.606 1.277.111.04.224.059.336.059.411 0 .796-.255.942-.664L23.705 16h-2.124z"/><path fill="#DD2E44" d="M7 30c-.15 0-.303-.034-.446-.105-.494-.247-.694-.848-.447-1.342l3.062-6.106C9.186 22.419 11 19.651 11 17c0-3.242-2.293-4.043-2.316-4.051-.524-.175-.807-.741-.632-1.265.174-.524.739-.81 1.265-.632C9.467 11.102 13 12.333 13 17c0 3.068-1.836 6.042-2.131 6.497l-2.974 5.949C7.72 29.798 7.367 30 7 30z"/><path fill="#292F33" d="M14.612 13.663c-.054 0-.11-.004-.165-.014l-6-1c-.544-.091-.913-.606-.822-1.151.091-.544.601-.913 1.151-.822l6 1c.544.091.913.606.822 1.151-.082.489-.506.836-.986.836zM26.383 17c-.03 0-.059-.002-.089-.006l-5.672-.708c-.372-.046-.644-.374-.62-.748.023-.374.333-.665.707-.665.041 0 4.067-.018 5.989-1.299.25-.167.582-.157.824.026.239.185.337.501.241.788l-.709 2.127c-.096.293-.369.485-.671.485z"/><path fill="#66757F" d="M20 29c0 1.104-.895 2-2 2-1.104 0-2-.896-2-2s.896-2 2-2c1.105 0 2 .896 2 2z"/></g></svg>
AltText: bicycle
Placement: before-question
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f6b2","name":"bicycle","count":1,"role":"badge"}]

Rule: x - 3. Find the missing output.

Show answer

Answer: 4

Rule
x - 3
Table
  • {"input":7,"output":null,"blank":true}
  • {"input":8,"output":5,"blank":false}
  • {"input":4,"output":1,"blank":false}
  • {"input":6,"output":3,"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="#DD2E44" d="M13 32h20s3 0 3-4c0-2 0-6-1-7s-8-7-11-7h-6c-3 0-10 7-10 7l-4 1s-3 1-3 3v3s-1 .338-1 1.957C0 32 2 32 2 32h11z"/><path fill="#BBDDF5" d="M20 16h-2c-2 0-8 6-8 6s4.997-.263 10-.519V16zm10 3c-1-1-5-3-7-3h-1v5.379c4.011-.204 7.582-.379 8-.379 1 0 1-1 0-2z"/><circle fill="#292F33" cx="10" cy="31" r="4"/><circle fill="#CCD6DD" cx="10" cy="31" r="2"/><circle fill="#292F33" cx="27" cy="31" r="4"/><circle fill="#CCD6DD" cx="27" cy="31" r="2"/></g></svg>
AltText: car
Placement: before-question
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f697","name":"car","count":1,"role":"badge"}]

Rule: x + 3. Find the missing output.

Show answer

Answer: 10

Rule
x + 3
Table
  • {"input":7,"output":null,"blank":true}
  • {"input":4,"output":7,"blank":false}
  • {"input":7,"output":10,"blank":false}
  • {"input":3,"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="#E1E8ED" d="M32 22s-2-8-5-8H16c-3 0-7 7-7 7s-8 1-8 5v2c0 .09.021.175.026.263C.417 28.605 0 29.251 0 30c0 1.104.896 2 2 2h30c2.209 0 4-1.791 4-4v-2c0-2.209-1.791-4-4-4z"/><path fill="#292F33" d="M1 26v2c0 .09.021.175.026.263C.417 28.605 0 29.251 0 30c0 1.104.896 2 2 2h30c2.209 0 4-1.791 4-4v-2c0-.348-.059-.679-.142-1H1.201c-.117.312-.201.641-.201 1z"/><path fill="#66757F" d="M15.91 32c.055-.326.09-.658.09-1 0-3.313-2.686-6-6-6-3.313 0-6 2.687-6 6 0 .342.035.674.09 1h11.82zm17 0c.055-.326.09-.658.09-1 0-3.313-2.687-6-6-6s-6 2.687-6 6c0 .342.035.674.09 1h11.82z"/><circle fill="#292F33" cx="10" cy="31" r="4"/><circle fill="#E1E8ED" cx="10" cy="31" r="2"/><circle fill="#292F33" cx="27" cy="31" r="4"/><circle fill="#E1E8ED" cx="27" cy="31" r="2"/><path fill="#DD2E44" d="M21 13c0 .552-.447 1-1 1h-3c-.552 0-1-.448-1-1s.448-1 1-1h3c.553 0 1 .448 1 1z"/><path fill="#55ACEE" d="M22 13c0 .552-.447 1-1 1h-2c-.552 0-1-.448-1-1s.448-1 1-1h2c.553 0 1 .448 1 1zm1 8h7s-2-5-3-5h-4v5zm-2-5h-5c-2 0-5 5-5 5h10v-5z"/></g></svg>
AltText: police car
Placement: before-question
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f693","name":"police-car","count":1,"role":"badge"}]

Rule: x × 3. Find the missing output.

Show answer

Answer: 21

Rule
x × 3
Table
  • {"input":7,"output":null,"blank":true}
  • {"input":5,"output":15,"blank":false}
  • {"input":7,"output":21,"blank":false}
  • {"input":7,"output":21,"blank":false}

Rule: x - 4. Find the missing output.

Show answer

Answer: 1

Rule
x - 4
Table
  • {"input":12,"output":8,"blank":false}
  • {"input":5,"output":null,"blank":true}
  • {"input":8,"output":4,"blank":false}
  • {"input":9,"output":5,"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="#CCD6DD" d="M35 12c0-1-1-4-4-4H9.401c-1.377 0-3.29 1.791-4.302 4L2 17c-1.453.599-2 2.331-2 4v6c0 2.209 1.791 4 4 4h28c2.209 0 4-1.791 4-4v-8c0-1.027-1-7-1-7z"/><path fill="#E1E8ED" d="M9 25c-3.267 0-5.918 2.612-5.993 5.861.32.081.648.139.993.139h11c0-3.313-2.686-6-6-6zm23.993 5.86C32.918 27.612 30.268 25 27 25c-3.312 0-6 2.687-6 6h11c.345 0 .674-.058.993-.14z"/><circle fill="#292F33" cx="9" cy="31" r="4"/><circle fill="#99AAB5" cx="9" cy="31" r="2"/><circle fill="#292F33" cx="27" cy="31" r="4"/><circle fill="#99AAB5" cx="27" cy="31" r="2"/><path fill="#DD2E44" d="M0 21h36v3H0zm31-8h-3v-3h-2v3h-3v2h3v3h2v-3h3z"/><path fill="#55ACEE" d="M8 10h5v7H4z"/><path fill="#DD2E44" d="M15 6.5c0 .829-.671 1.5-1.5 1.5h-2c-.829 0-1.5-.671-1.5-1.5S10.671 5 11.5 5h2c.829 0 1.5.671 1.5 1.5z"/><path fill="#55ACEE" d="M18 6.5c0 .829-.671 1.5-1.5 1.5h-2c-.829 0-1.5-.671-1.5-1.5S13.671 5 14.5 5h2c.829 0 1.5.671 1.5 1.5z"/></g></svg>
AltText: ambulance
Placement: before-question
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f691","name":"ambulance","count":1,"role":"badge"}]
← More Arithmetic

Teaching Notes

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

Frequently Asked Questions

How do I use this Function Machine Subtraction 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.

Workbook Detail

Function Machine Subtraction Easy — Set 4

Arithmetic B
easy Set 4 Form Exercise

Rule: x × 3. Find the missing output.

Show answer

Answer: 33

Rule
x × 3
Table
  • {"input":3,"output":9,"blank":false}
  • {"input":11,"output":null,"blank":true}
  • {"input":7,"output":21,"blank":false}
  • {"input":5,"output":15,"blank":false}

Rule: x × 3. Find the missing output.

Show answer

Answer: 21

Rule
x × 3
Table
  • {"input":6,"output":18,"blank":false}
  • {"input":1,"output":3,"blank":false}
  • {"input":7,"output":null,"blank":true}
  • {"input":4,"output":12,"blank":false}

Rule: x - 1. Find the missing output.

Show answer

Answer: 8

Rule
x - 1
Table
  • {"input":2,"output":1,"blank":false}
  • {"input":9,"output":null,"blank":true}
  • {"input":8,"output":7,"blank":false}
  • {"input":10,"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="#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 - 4. Find the missing output.

Rule
x - 4
Table
  • {"input":3,"output":null,"blank":true}
  • {"input":5,"output":1,"blank":false}
  • {"input":6,"output":2,"blank":false}
  • {"input":4,"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="#DD2E44" d="M13 32h20s3 0 3-4c0-2 0-6-1-7s-8-7-11-7h-6c-3 0-10 7-10 7l-4 1s-3 1-3 3v3s-1 .338-1 1.957C0 32 2 32 2 32h11z"/><path fill="#BBDDF5" d="M20 16h-2c-2 0-8 6-8 6s4.997-.263 10-.519V16zm10 3c-1-1-5-3-7-3h-1v5.379c4.011-.204 7.582-.379 8-.379 1 0 1-1 0-2z"/><circle fill="#292F33" cx="10" cy="31" r="4"/><circle fill="#CCD6DD" cx="10" cy="31" r="2"/><circle fill="#292F33" cx="27" cy="31" r="4"/><circle fill="#CCD6DD" cx="27" cy="31" r="2"/></g></svg>
AltText: car
Placement: before-question
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f697","name":"car","count":1,"role":"badge"}]

Rule: x - 1. Find the missing output.

Show answer

Answer: 8

Rule
x - 1
Table
  • {"input":9,"output":null,"blank":true}
  • {"input":3,"output":2,"blank":false}
  • {"input":9,"output":8,"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="#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
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:1f6a2","name":"ship","count":1,"role":"badge"}]

Rule: x × 2. Find the missing output.

Show answer

Answer: 18

Rule
x × 2
Table
  • {"input":9,"output":null,"blank":true}
  • {"input":9,"output":18,"blank":false}
  • {"input":5,"output":10,"blank":false}
  • {"input":9,"output":18,"blank":false}

Rule: x + 2. Find the missing output.

Show answer

Answer: 10

Rule
x + 2
Table
  • {"input":6,"output":8,"blank":false}
  • {"input":8,"output":null,"blank":true}
  • {"input":2,"output":4,"blank":false}
  • {"input":1,"output":3,"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="#A7A9AC" d="M20 26c0 .553-.447 1-1 1-.552 0-1-.447-1-1V1c0-.552.448-1 1-1 .553 0 1 .448 1 1v25z"/><path fill="#D1D3D4" d="M3 24h31v8H12c-6 0-9-8-9-8z"/><path fill="#55ACEE" d="M0 30h36v6H0z"/><path fill="#FFAC33" d="M5 22s2-5 5-9 8-8 8-8-1 11-1 16v1s-3-1-6-1-6 1-6 1z"/><path fill="#F4900C" d="M20 2s6 6 9 11c2.771 4.618 4 9 4 9s-3-1-6-1-6 1-6 1v-1c0-9-1-19-1-19z"/><path fill="#E6E7E8" d="M2 24c-.552 0-1 .447-1 1s.448 1 1 1h33v-2H2z"/></g></svg>
AltText: sailboat
Placement: before-question
VisualToken
Type: asset-ref
EffectiveProvider: twemoji
RequestedProvider: twemoji
IconSize: 36
Layout: icon-badge
Placement: before-question
Items: [{"ref":"twemoji:26f5","name":"sailboat","count":1,"role":"badge"}]

Rule: x × 3. Find the missing output.

Show answer

Answer: 15

Rule
x × 3
Table
  • {"input":4,"output":12,"blank":false}
  • {"input":5,"output":null,"blank":true}
  • {"input":12,"output":36,"blank":false}
  • {"input":12,"output":36,"blank":false}
← More Arithmetic

Teaching Notes

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

Frequently Asked Questions

How do I use this Function Machine Subtraction Easy Practice?

Print the worksheet and use it for independent practice, homework, or assessment. The included answer key allows for quick grading.

Is there an answer key?

Yes — the answer key is included and can be printed separately.