Mathematics for IGCSE & O level - Estimation (Section 1 - No. 7)
What is the rule for the digit after the last significant figure?
If less than 5 round down
If 5 or more round up
If more than 5, round up
Both A & B
ব্যাখ্যা
Standard rounding rule applies: round up if 5 or greater, round down otherwise.