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Metric Conversion
# of Sig Figs
Round to Correct SF
Multiplying/Dividing
Adding/Subtracting
100

6.30 mm = _____ m

0.00630 m

100

.00000000000009

 1

100

4.3436 to 2 SF

 4.3 

100

7.6 x 21.9 =

170

100

104 + 7.8 + 40

152

200

5.6 kg = _____ g

5,600 g

200

2.0900

5

200

.0987 to 1 SF

0.1

200

38 / 7 =

5

200

91.68 - 19.1 =

72.6

300

2500. m = ______ km

 2.500 km

300

89,000,000

 2

300

89,499,000 to 3 SF

89,500,000

300

45.26 x 0.01088

0.4924

300

42.828 + 67.4629 =

110.291

400

20 g = ____ mg

20,000 g

400

0.00090009

 5

400

.987332 to 2 SF

0.99

400

500,009 / 17.000 =

What is 29,412

400

53.4028 - 14 =

39

500

60.0 mm = ______ km

0.00000600 km

500

10,009,000.

8

500

35.7823 to 2 Sig Fig

36

500

2.15 x 3.1 x 100 =

700

500

(3.91 + 4) x (9.12 x .00090) = 

 0.7