Unitary Method
ICSE · Class 5 · Mathematics
Quick revision notes for Unitary Method — ICSE Class 5 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
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Key Topics to Revise
What is the Unitary Method?
- Unitary means 'one unit'.
- We first find the value of one item, then use it to find the value of many.
- If more items, we multiply. If fewer items, we divide.
Direct and Inverse Variations in Unitary Method
- In direct variation, more units mean more value (e.g., more pens, more cost).
- In inverse variation, more people or speed means less time (e.g., more workers, less time to finish work).
- For inverse problems, first find total work in 'one-person' or 'one-day' terms.
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