Today’s problem — free all day, every step. Every day has one.
Mr Ong earns $1200 a month. He spent of it on rent and of the remainder on groceries. How much money did he have left?
Answer
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65 worked examples are free without a code, two from every pattern. No account, either way.
The second fraction is of one piece, not of the whole.
In this one. Treat the amount left after rent as the new whole before finding one-third for groceries.
A second fraction arrives after the first and is attached to a piece rather than to the whole — 'of the remainder', 'of what was left', or 'of the ones that were red'.
Children take the second fraction of the original total instead of the piece it was named against, which makes the amount come out too big.
Worked examples of all 33 patterns and skills, in a booklet you can print.