Rounding Off Estimations — Formula Sheet
ICSE · Class 5 · Mathematics
5 formulas from Rounding Off Estimations (ICSE Class 5 Mathematics) on one page, grouped by topic. Part of the ICSE Class 5 Mathematics syllabus.
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Formulas and Key Relations
Rounding Off Rules
If digit ≥ 5 → round up by 1, else keep same
Estimation in Operations
Estimated Sum = Sum of rounded numbers
Estimated Difference = Rounded minuend – Rounded subtrahend
Estimated Product = Rounded multiplicand × Rounded multiplier
Estimated Quotient = Rounded dividend ÷ Rounded divisor
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