Rounding example
Round 0.9978 to 2 Significant Figures
0.9978 rounded to 2 significant figures is 1.0 because the next digit rounds 0.99 upward.
Question
0.9978 to 2 significant figures
Answer
0.9978 rounded to 2 significant figures is 1.0.
Step-by-step explanation
1
Ignore leading zeros before the decimal.
2
Keep the first two significant digits: 9 and 9.
3
The next digit is 7, so the value rounds up to 1.0.