Significant Figures and Scientific Notation

How many significant figures does the following number have: 0.998005

• 9
• 10
• 6
• 5

Tags

CCSS.HSN.Q.A.3

How many significant figures does 1.90 have?

• 2

• 4

• 6

• 8

Round 0.010229 to four sig figs

• 1022
• 1023
• 0.01023
• 0.01022

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

Express 23400 in proper scientific notation. 

• 2.34 x 10⁴
• 2.3 x 10³
• 2.30 x 10⁵
• 2.34 x 10³

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.4

The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?

• 1.54 x 10¹² m
• 1.54 x 10^-12 m
• 1.54 x 10¹⁰ m
• 1.54 x 10^-10 m

Tags

CCSS.6.EE.A.1

Which of the following is correct scientific notation?

• 20.35 x 10⁴
• .2035 x 10⁴
• 2035 ⁴
• 2.035 x10⁴

Tags

CCSS.6.EE.A.1

The number of significant figures in: 405,000

• 6

• 5

• 4

• 3

Writing in scientific notation:

• decimal goes behind the first non-zero, exponent is the number of times the decimal moves, + exponent for >1, - exponent for <1

• decimal goes behind the second non-zero, exponent is the number of times the decimal moves, + exponent for >1, - exponent for <1

• decimal goes behind the second non-zero, exponent is the number of times the decimal moves, + exponent for <1, - exponent for >1

The expanded form of 3.4 x 10⁴ is

• 0.00034

• 340

• 3400

• 34000