Scientific Notation
Unit conversions
SI units
Sig Figs
Calculating Sig Figs
100

8,900,000,000 in scientific notation

8.9 x 109

100

Express 350 centimeters in meters

3.5 meters

100

The SI unit for time

Seconds

100

Number of sig figs in 76.5

3

100

Find the sum and express using sig fig rounding rules: 

0.006 km + 0.059 km

0.065 km

200

670,000,000 in scientific notation

6.7 x 108 

200

Express 97.4 meters in centimeters

9,740 centimeters 

200

SI unit for length

Meter

200

Number of sig figs in 8,900

2

200

Find the difference and round using sig fig rules: 

0.463 Mm - 0.09 Mm

0.37 Mm

300

0.0000034 in scientific notation

3.4 x 10-6

300

Express 5.3 kilometers in meters.

5,300 meters

300

SI unit for mass

Kilogram

300

Number of sig figs in 600.2

4

300

Find the difference and round using sig fig rules:


0.0205 m - 0.009 m= 

0.012 m

400

4.77 x 10in standard form

4,770,000

400

Express 2 hours in seconds

7,200 seconds

400

SI unit for temperature

Kelvin

400

Number of sig figs in 0.0004

1

400

Find the product and round using sig fig rules: 

9.8 m/s (3 kg) 

30N

500

 2.04 x 10-6 in standard form

0.00000204

500

Express 2.3 miles in meters when 1 mile is 1.61 kilometers.

3,703 meters

500

SI unit for electric current 

Ampere

500

Number of sig figs in 20.000

5

500

Use the speed formula to calculate the speed and round using sig fig rules. 

Distance: 150 m  Time: 20.5 s

 s = d/t 

7.3 m/s 

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