200 cm = ____ m
2

Accurate
What type of 0 is this: 404
Sandwich
240
2.4 x 102
2 x 101
20
4800 ms = _______ s
4.8
What does precise mean?
Can be repeated
What type of 0 is this: 200
Trailing with no decimal
0.0067
6.7 x 10-3
3.4 x 10-3
0.0034
909.3m = ______ km
0.9093 or 0.91
Draw a bullseye that is accurate AND precise.
All arrows in the center of the bullseye
What type of 0 are these: 0.0023
Leading
20,000
2 x 104
5.05 x 106
5,050,000
56.21dg = ________ g
5.621
How do we calculate accuracy?
Percent error formula
Write a number between 1-10 that has 5 sig figs
1.0000, 9.9999, etc
0.0000308
3.08 x 10-5
9.099 x 10-8
0.00000009099 (7 zeroes after the decimal before the 9)
90,865.34mL = ________ L
90.86534 or 90.87
If I calculate a percent error to be 93%, are my results accurate?
No
Write a number that has a sandwich zero AND a trailing zero with no decimal.
2020 / 30,300 / 90090 / etc.
588,000,000,000
5.88 x 1011
7.504 x 1010
75,040,000,000