Three parts, one whole: complete description

Two original ordinary accounts represent ONE collection of 23, not two added collections. Account 1 has 3 outlined parts, left to right values 10, 10, 3, with actual countable circle marks matching each value. Account 2 has 3 outlined parts, left to right values 10, 5, 8, with actual countable circle marks matching each value. Bottom: an explicitly empty own-next-plan region; no mathematical answer is prefilled there.

Original SVG. Use suitable tactile/large pieces or directed adult movement if useful. A supplied account is a model, not an independently created answer.

Original SubjectNest teaching and drawings © NeuroForgeIO Pty Ltd 2026, CC BY 4.0. Credit SubjectNest by NeuroForgeIO Pty Ltd, version 0.1.0, source and licence; note changes. Curriculum and provider rights remain separate.