# Ten optional supplementary cards

Use after the core session, never as a prerequisite or a penalty for a slower access route. Each can fit a 5–12 minute home, small-group or next-day slot with scrap paper. No home printer, internet, payment, real plant or person-recording is required.

| Day | Optional card | Quick self-check |
| --- | --- | --- |
| 11 | Invent a fifth **fictional** T card with one changed trait; say if it matches a baseline profile. | Compare all three traits, including *entire* edge. |
| 12 | Rewrite one nested `IF` line in plain words, then reverse it and test one card. | The reverse must produce a different branch when its condition changes. |
| 13 | Suppose only 6 of 8 imaginary test outputs are safe. Express the result as fraction, decimal and percent. | `6/8=0.75=75%`; say “of these eight”. |
| 14 | Give a younger reader two different meanings of “unmatched”; choose the one supported here. | It means no full match in this six-card model; it does not mean “unknown species”. |
| 15 | Make a new V3 paper input (entirely smooth, pointed, short), trace and verify. | Candidate S3; all three fields match. |
| 16 | Explain `48=2⁴×3` using repeated multiplication and a product check. | `2×2×2×2×3=16×3=48`. |
| 17 | Convert one numbered storyboard frame into a complete linear text sentence. | A reader can follow it without seeing arrows or colour. |
| 18 | Try a third imaginary option C at $26 under the same $25 cap. Is it feasible? | No: it exceeds the cap by $1; access baseline remains. |
| 19 | Give two different edits to Draft A: one for arithmetic evidence, one for navigation. | Arithmetic: expand powers/check. Navigation: overview or labelled steps. |
| 20 | With different values from the check, explain `90=2×3²×5` and point to each prime. | `2×9×5=90`; 2, 3 and 5 are prime. |

Original SubjectNest optional cards © NeuroForgeIO Pty Ltd 2026, [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).