Scientific Notation 3

Página 1

Studentw do Scientific Notation writing:

1. 0.004

2. 0.0000000000000000123

3. 452000000000000

4. 698.254000000000000

5. 3.28x 10(8)

6. 8.45x 10(-3)

7. 8.45x 10(5)

8. 1.2x10(-8)

kare zeroes significant?

every number is significant except the zero

zeroes between non zero digits are always significant

3,091 (4) 8204 (5)

109003 (6) 5.00603 (6)

Zeroes that come fore all non zero digits are never significant

0.000491(3) .0132 (3) 0.000000062 (3)

Zeroes that come after non zero digits

83,000 (2) 83,000. (5)

The number of significant figures in my answer are going to be given by the samllest number of significant figures on the problem. Any number that isnt a zero is always a significant figure.

You need to round depending on the number of significant figures in the problem. Whenever we multiply or divide numbers with different significant figures we round to the smallest significant figures.

5621 x 893 = 5,019,553 = 5,020,000

Zeroes sandiwched between nonzero digits are always significant. Zeroes that come before all nonzeroe digits are neta significant.

0.000491= only 3 significant figures.

Zeroes that come after nonzero digits

83,000=2sg 83,000.=5sg 83.000 = 2 sg