0.652
(1.10 X 0.5120 X 4.0015)/ 3.4555
4.9
0.355 + 105.1 - 100.5820
0.369
(3.0007 X 9.441 X 0.0301) / 2.31
121.0
0.881 + 132.1 - 12.02
1.84
9.15 / 4.970
0.033
1.54 X 0.03060 X 0.69
0.500
(27.5 X 1.82) / 100.04
34
(2.290 X 10⁶) / (6.7 X 10⁴)
600
89.3 X 77 X 0.08
640
(5.01 X 10⁵) / (7.8 X 10²)
2
4.005 X 74 X 0.007
223
453 / 2.031
41.4
43.7 - 2.341
133.5
17.6 + 2.838 + 2.3 + 110.77
73.0
19.6 + 58.33 - 4.974
0.42
5.99 - 5.572
0.103
0.004 + 0.09879
1252.5
1239.3 + 9.73 + 3.42
0.6
2.4 - 1.777
491
532 + 7.3 - 48.523
11.9
5.9 + 6.01
76
7.86 x 9.7
How many significant figures are there in 85.7007?
6
How many significant figures are there in 0.00045?
2
How many significant figures are there in 2600?
2
How many significant figures are there in 0.0450?
3
How many significant figures are there in 1.40x10²³?
3
How many significant figures are there in 200. ?
3
How many significant figures are there in 0.1000?
4
How many significant figures are there in 2020?
3
How many significant figures are there in 20002?
5
How many significant figures are there in 0.07020?
4
How many significant figures are there in 1.004x10²²?
4
How many significant figures are there in 2.7x10²³?
2
How many significant figures are there in 80?
1
How many significant figures are there in 0.00700
3
Express 24,000 in scientific notation.
2.4x10⁴
Express 0.0041 in scientific notation.
4.1x10⁻³
Express 240 in scientific notation.
2.4x10²
Express 0.0000078 in scientific notation.
7.8x10⁻⁶
Write 1.5x10⁻² in standard notation.
0.015
Write 1.5x10² in standard notation.
1500
Write 7.88x10⁻⁴ in standard notation.
0.00078
Write 9.21x10⁵ in standard notation.
921000
how close a measurement is to the accepted value
accuracy
how close a set of measurements are to eachother
precision
how do you determine the precision of a set of data?
calculate the range(highest-lowest)
how do you calculate the accuracy of a data point?
calculate percent error (error closest to zero is the most accurate)
What does negative percent error tell us about the data?
the experimental value was too large
What does a positive percent error tell us about the data?
the experimental value was too small
Convert 2.4 mg to dg
0.00024 dg
Convert 2.4 g to dg
24
Convert 870 mg to g
.870 g
Convert 80 g to cg
8000 cg
Convert 0.045 Kg to g
45 g
Convert 0.50 Hm to mm
50000 mm
Convert 750mm to m
.750 m
Convert 900mL to cL
90 cL
Convert 750000 cg to g
7500 g
Convert 25 cm to mm
250mm
Convert 78 Kg to Dg
7800 Dg
Convert 8.0 Hm to cm
80000