Metrics and Math Rules

*Significant Figures -For the following count the # of sig figs

100

0.03

1 sig fig

200

0.050

2 sig fig

300

00.704

3 sig fig

400

17.0080

6 sig figs

500

650,000

2 sig figs

*Add/Subtract Significant Figures-For the following add/subtract according to the rules of significant figures

100

2.1 + 3.3

5.4

200

4.50 - 2.3

2.2

300

7.05 + 14

21

400

6.4 + 22 - 10.5

18

500

17.116 - 8.2 + 9.30

18

*Multiply/Divide Significant Figures- For the following multiply/divide the significant figure

100

3.1 x 2.0

6.2

200

17.46/2.3

7.6

300

5.3 x 6.7

36

400

.040 x 52

2.1

500

1000/13.4

70

Metric Conversions

100

3 feet to inches

36 inches

200

580 grams to milligrams

580000 milligrams

300

40,218 grams to kilograms

40.218

400

81.9^oC  to Kelvin

354.9 K

500

7.85 x 10⁵ centimeters to kilometers

7.85 kilometers

*Scientific Notation-Convert the following to scientific notion

100

Write in Scientific Notation 3,240,000,000,000

3.24×10¹²

200

Write in standard form: 5.23×10⁵   

523000

300

Round off this number correctly up to 3 significant figures: 0.0012485 

1.25x10^-3

400

 Convert it into Standard form: 4.265 x 10 -7

0.0000004265

500

Convert the given value to scientific notation, rounding to four significant figures: 4000

4.000 x 10³