Role
Neutral held source plus four genuine empty areas; 32 total empty interiors, source exposure tracked
Complete source
A fictional Australian-dollar budget is $300. Two invented whole-dollar costs are $148 and $153. There are no other costs in this model. These are not current prices, personal finances or a purchase invitation.
Full alternative
Complete neutral fictional source: A fictional Australian-dollar budget is $300. Two invented whole-dollar costs are $148 and $153. There are no other costs in this model. These are not current prices, personal finances or a purchase invitation. Four exact own prompts, in order: 1. Write a model for the combined cost and its comparison with the budget. 2. Give a nearest-ten estimate and state its purpose. 3. Calculate exactly and decide whether it fits. State the money left or excess. 4. Give an exact check and explain why the rough estimate alone was insufficient here. Each response area is genuinely empty; no sample answer, equation, strategy, faint model or watermark appears inside it. Staff criteria and next lessons are separate.
Rights
Original planned geometry and prose ©NeuroForgeIO Pty Ltd 2026, CC BY 4.0; curriculum/source text stays under its own notices. No banknote designs, logos, cultural motif or pupil-image copying.
Status
Original SVG and PNG constructed in this source candidate. Preserved brief predates construction; different whole source/art and Root Browser acceptance remain pending.