Additive Work Bench
Make a useful note about a problem. Choose your way to represent it, check it with an adult when useful, and compare two notes you chose to keep.
Reloading or closing this page loses your draft and both kept notes. Nothing is sent or stored outside this page. When automatic actions are working, each area holds up to 1,200 characters; extra characters are removed with a message. Without the script, or if it cannot start, that check and message are unavailable. The browser’s own limit is up to 2,400 characters, fewer for some characters. Use paper if you need more room. Do not add personal information.
No automatic solving or marking. You can draw, use usual communication or direct an agreeing helper instead. Automatic actions need the script; the seven empty areas and source disclosures remain available without it.
Complete paper equivalent · Two paper notes to keep and compare
Blank note areas. Automatic actions need the script.
My note · a reading of my words
Two kept notes
Only the two notes you chose to keep are shown. Differences do not prove learning.
Choose an ordinary source
C01 · Repair slips
Name both parts and the whole.
A fictional repair desk receives 312 paper slips and 124 more of the same kind.
C02 · Story cards
Distinct card types can join as a total card count; no story quality claim.
An invented story archive joins 523 scene cards and 245 character cards; all are counted as cards.
C03 · Game badges
Keep both badge counts and the joined total distinct.
A fictional badge set has 186 blue and 257 plain badges.
C04 · Sound prompt cards
Represent one hundred crossing.
An imagined sound game has 438 prompt cards and 185 new prompt cards. No volume or hearing task is required.
C05 · Sticker strips
Show the extra one and its removal.
A fictional sticker plan joins 399 and 146 stickers.
C06 · Costume labels
Compare an estimate with an exact total, explaining their purposes.
An invented costume plan joins 698 and 257 labels.
C07 · Map tiles
No real map or journey claim.
A fictional tabletop map has 705 tiles, removes 268 from the design.
C08 · Puzzle pieces
Keep count-up as connected check.
An imagined puzzle store has 902 pieces and uses 457 once.
C09 · Reading slips
Difference counts slips, not reading ability.
Two made-up reading stations list 1301 and 987 slips. Both collections remain.
C10 · Recycling game
No environmental impact claim.
Two invented recycling-game trays show 2002 and 1786 point cards; no waste-weight observation.
C11 · Print target
Box is the missing part, not 630.
A fictional print target is 630 cards, 287 available: 287+□=630.
C12 · Creature game
Nothing about real animals or habitat.
An invented creature card target is 900, 576 already counted.
C13 · Archive retirement
Unknown is used amount.
A fictional archive starts 840 cards, ends 518: 840−□=518.
C14 · Paper theatre
Not actual ticket sales.
A fictional theatre uses 237 paper tickets and has 486 left:□−237=486.
C15 · Two-box puzzle
Compute known side before missing part.
An invented equation is 176+□=400+30.
C16 · Shelf puzzle
Keep both full sides equal and describe what the box counts.
An imaginary equation is 900−250=□+328.
C17 · Poster budget
No real fee, cents or financial advice.
Pretend AUD costs $197 and $186 are compared with $380 budget.
C18 · Clue supply
An estimate can check scale, not exact gap.
A made-up puzzle needs 500 clue slips; 278+195 are available.
C19 · Paper garden game
Plant words are fiction, no growing instructions.
An invented paper-garden game starts 685 markers, receives 147, then uses 238.
C20 · Robot-card relay
Order and units are stated, not guessed.
A fictional robot card tray starts 1207, uses 286, then receives 149.