Missing Number Data Interpretation

intermediate24 min read

Tables where a cell is left blank and must be found from a stated relationship: a row total, a given ratio, a percentage change, or an average. Read the clue, set up one equation, solve.

What you will be able to do

Identify which relationship a question gives to fix a blank cell.
Turn that relationship into a single equation in one unknown.
Handle row-total, ratio, percentage-change and average clues.
Reuse a blank you have already found for a later question.

What is inside this lesson

1What a missing-number set looks like
2Read the clue, write one equation
3The four clue types
4Worked example: accounts opened by branch
5Common mistakes
6Quick revision
7Practice

The lesson itself is for members

Reading the 7 sections above, the worked examples and the practice set is free — the whole knowledge base is on the free plan, along with flashcards, private notes and Ask Onely.

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