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Rounding #s
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More Sig Figs
Convert to Scientific Notation
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100

Round 150 to 1 significant figure

200

100
172
What is 3?
100

4.530

4

100
172
What is 1.72 x 10^2?
100
3.69 x 10^-2
What is 0.0369?
200

Round the following to 2 significant figures:  4,260,000

4,300,000

200
107.2
What is 4?
200

52000

2

200
0.502
What is 5.02 x 10^-1?
200
1.56 x 10^4
What is 15600?
300

Round 0.0075 to one significant figure

0.008

300
0.502
What is 3?
300

100

1

300
123,453
What is 1.23453 x 10^5?
300
0.00259 x 10^5
What is 259?
400

Round 77.0653 to three significant figures.

 77.1

400

9.00600

6


400

100.0

4


400
0.982 x 10^-3
What is 9.82 x 10^-4?
400
736.9 x 10^5
What is 73690000?
500

Round 0.00023350 to 3 significant figures.

0.000234?

500

310

2

500

526.000

6

500
3100.0 x 10^2
What is 3.1000 x 10^5?
500
0.000459 x 10^-1
What is 0.0000459?