Each full side is equal · complete text alternativeYear 4 Maths · T2 W11–12 · Assets / V08 alternative
Source review complete · local suitability still needs review.
Role
Adult ordinary model; exposed solution separate from genuine blank own work
Complete source
Day 58 ordinary 245+□=390+75.
Full alternative
An adult equality model for 245+□=390+75. The known right side is 465. The missing left part is 220 because 465−245=220. Substitution gives 245+220=465 and 390+75=465. Schematic bars stand for equal whole amounts and are explicitly not to scale; the box value 220 is not the whole-side value 465.
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.
About this resource
Reviewed source editionSource review is complete for this two-week edition. Local suitability and classroom use still need review. Earlier candidate or pending-review words are retained in the original files; full-year coverage, translations and audio are not claimed.
Exact source: 4648f91e381afcd8f44278b0cd20c1791389d9db · 2026-10-13. Source edition, roles and hashes
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