Course 2 - Comparing and Ordering Rational Numbers

Jamie used a microscope to measure the diameter of a hair.  She found the diameter to be 0.000072 meters.  How is this number written in scientific notation?

• 7.2 X 10⁻⁵
• 7.2 X 10⁵
• 7.2 X 10⁶
• 7.2 X 10⁻⁶

Tags

CCSS.8.EE.A.3

_{Four students are each trying to raise the same amount of money for a class trip.  The table below shows how much of each student's goal has been met.
Which list shows the numbers in the table in order from least to greatest?} 

• 0.7, 65%, ⅝, ⅔
• 0.7, ⅝, 65%, ⅔
• ⅝, 65%, ⅔, 0.7
• ⅝, ⅔, 65%, 0.7

Choose the number that is written in proper scientific notation. 

• 46 x 10⁷
• 0.9 x 10^-2
• 1.12 x 10¹
• 55 x 10⁴

Tags

CCSS.8.EE.A.3

10^-2 is equivalent to:

• -1/10  x -1/10
• -10 x -10
• .01
• 1/10

Tags

CCSS.7.NS.A.2A

Which of the following is equivalent to 0.023

• 23/100
• 2/10
• 23%
• 2.3 x 10^-2

Tags

CCSS.4.NF.C.6

Order the following from least to greatest.  
1/2,   2%,    2.1 x 10^-2,      0.20

• 2%, 2.1 x 10^-2, 1/2, 0.20
• 2%, 2.1 x 10^-2, 0.20, 1/2
• 0.20, 1/2, 2%, 2.1 x 10^-2
• 2.1 x 10^-2, 1/2, 0.20, 2%

Tags

CCSS.5.NBT.A.3

What is 7.1 x 10^-6 written in decimal form?

• .00000071
• .000071
• .0000071

Tags

CCSS.8.EE.A.3

10^? = 0.00001
Which exponent will make this statement true?

• 5
• -4
• 4
• -5

Tags

CCSS.5.NBT.A.2

Which list is in order from least to greatest?

• 2/3 , 1/4 , 29% , 0.06
• 2/3 , 29% , 1/4 , 0.06
• 0.06 , 1/4 , 29% , 2/3
• 1/4 , 2/3 , 0.06 , 29%

Tags

CCSS.5.NBT.A.3

CCSS.5.NBT.B.7

Which is a true statement?

• 10^-2 = 0.001
• 10^-3 = 0.001
• 10^-1 = 0.01
• 10^-5 = 0.0001

Tags

CCSS.5.NBT.A.2