Comparing and Scientific Notations

Which is the smallest?
1.3 x 10²⁰
2.9 x 10²¹
9.5 x 10³²
8.4 x 10¹⁹

• 1.3 x 10²⁰

• 2.9 x 10²¹

• 9.5 x 10³²

• 8.4 x 10¹⁹

Tags

CCSS.8.EE.A.3

Which of these numbers is the greatest?

• 5.406 x 10⁸

• 5.504 x 10⁷

• 5.604 x 10⁹

• 6.504 x 10⁸

Tags

CCSS.8.EE.A.3

Order the following from greatest to least:
 5 x 10³ 
 3.2 x 10⁸
 1.2 x 10⁸
 7 x 10⁵ 

•  7 x 10⁵ ,  5 x 10³ ,
   3.2 x 10⁸,  1.2 x 10⁸

•  3.2 x 10⁸, 1.2 x 10⁸,  7 x 10⁵, 5 x 10³ 

•  1.2 x 10⁸, 3.2 x 10⁸,
   5 x 10³ , 7 x 10⁵ 

Tags

CCSS.8.EE.A.3

4.81 x 10^-3  >  4.8 x 10^-3

• True

• False

Tags

CCSS.5.NBT.A.3B

To compare two numbers that are in scientific notation, first compare the​ (a)   . If they are the same, then compare the​ (b)   .​

• exponents

• decimals

Tags

CCSS.8.EE.A.4

Try to change the number back to standard form:  6.79  x  10⁴

• 679,000

• 6,790

• 67,900

• 6,790,000

Tags

CCSS.8.EE.A.3

Change from standard form to scientific notation: 0.004078

• 4.078  x  10^-3

• 4.078  x  10³

• 40.78  x  10^-4

• .4078  x  10^-2

Try to change the number back to standard form: 3.97  x  10^-2

• 0.000397

• 0.0397

• 0.0000397

• 0.397

Tags

CCSS.8.EE.A.3

How would you write -5.6 x 10^-3 in standard form?

• 0.0056

• -5,600

• 0.00056

• -0.0056

7.82 x 10^-6 is an example of scientific notation. The exponent of -6 tells you your number will be very ________.

• Large

• Small

• Basic

Tags

CCSS.8.EE.A.3