Rounding Rules
Keep the last significant figure digit the same and do not round up if the number after less than
5
172
3
33
30
172
170
545200
545 000
Round the last significant figure digit up if the number is ______ or more
5
107.2
4
450
500
0.502
0.50
0.6783
0.678
The first significant figure is any non-_____ digit
0.502
What is 3?
0.45
0.5
0.123
0.1
788 634
789 000
If a zero is between two non-zero digits, is it significant?
Yes
0.00982
3
0.00055
0.0006
304 000
30 000
0.30459
0.305
What 0 is significant? 0.04030
The first, second, third or fourth?
3100
4
9900
10000
0.00505
0.0051
0.004588
0.00459