Question

Round each of these numbers to three significant figures:
a) 30,776.552 =
b) 0.024 348 =

Answer 1

a) 30,800
1st sig fig is 3, then 0 then round 7 up to 8
b) 0.0243
1st sig fig is 2 as 0 before the first number isn’t counted, then 4 then 3