SubjectNest · Year 3 maths · Make it fit, then check
Home 23 · Find the tray part
Try one tiny turn.
Prepare: Paper/words only, or safe familiar scale with an adult.
Invitation: MODEL empty tray 55 g, tray plus pieces 235 g. Find the contents and check by addition; optionally observe a real zero state separately.
Adult worked model/check: 235 − 55 = 180 g;55 + 180 = 235.
Choice and boundary: No bodily mass, food policing, medicines or heavy handling. A model is not a weighing result.
Usual communication, exact scribing, private/untimed work and stopping are welcome. Keep a model answer separate from your child's own attempt; do not correct it silently. Observe one useful reason and choose a new unrelated example if wanted.