Keep row identity beside the number
| Item | Quantity | Unit | Price per unit |
|---|---|---|---|
| Notebook | 12 | packs of 5 notebooks | HK$40 per pack |
| Marker | 8 | single markers | HK$15 per marker |
| Folder | 6 | single folders | Price not supplied |
| Question | Expected answer | Check |
|---|---|---|
| How many individual notebooks? | 60 notebooks: 12 packs × 5 | Convert only the explicitly supplied pack size |
| What is the marker total? | HK$120: 8 × HK$15 | Use the marker row and unit price |
| What do the folders cost? | Cannot calculate: no folder price is supplied | Do not borrow another row’s price |
Judge the value, unit and row together
A response says “12 notebooks” because it copied the quantity cell exactly. Is that correct?
Show the worked answer
No. The cell counts packs, not notebooks. If the question asks individual notebooks, the expected count is 60; if it asks packs, the expected count is 12 packs.
A pass needs the correct row, magnitude, unit and any stated calculation. Preserve a blank price as missing. All numbers are invented for this worksheet; passing these arithmetic cases says nothing about extraction accuracy on real documents.