Percentage error from a reading

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Other lessons in this sub-strand

1. Absolute and relative error
2. Working limits of a reading
3. Percentage error from a reading
4. The error made by rounding
5. Truncation is not rounding
6. Adding two measured lengths
7. Subtracting measured quantities
8. The limits of a rectangular area
9. The limits of a speed
10. A margin for a journey