6th Grade Math Textbook, Progress

Divide.

9. 0.02
   100 10. 0.105
   10 11.30.8
   100 12. 9.9
   10


10. 849
    1000 14. 3.9
    100 15. 0.63
    10 16. 0.17
    100


11. 0.245
    100 18. 5.628
    1000 19. 9
    1000 20. 19.95
    10

Find the value of the variable.

21. 4.07
    n  0.0407 22.0.18
    m  0.018 23. 22.8
    x  0.0228


22. a
    100  56.7 25.d
    10  0.07 26. y
    1000  0.05

4 zeros

Write 0.00064 in scientific notation.

To write a decimal between 0 and 1 in scientific notation:

• Write the first factor by placing the decimal
  point to the right of the first nonzero digit.


• Count the number of places the decimal point
  was moved to the right and use this number
  as the negative exponent of the power of 10.
  In scientific notation, 0.00064 6.4  10 ^4.

0.00064 6. 4

0.0006. 4  6. 4  10 ^4

4 places

Write in scientific notation.

27. 0.015 28. 0.0000086 29.0.00000079 30. 0.000124


28. 0.0069 32. 0.0000000147 33.0.000000009 34. 0.0000716


29. Mike divided 815.6 m of fencing 36. A wasp has a mass of 0.005 mg.
    into 100 equal sections. How long Rename this mass in kilograms using
    is each section? scientific notation.

Scientific Notation of Decimals Between 0 and 1

Scientific notation can be used to rename

decimals that are between 0 and 1. Negative

exponents are used for the powers of 10.

0.00064 

10

6

,0

.4

00

6.4 

10 ,

1

000

6.4  10 ^4

The scientific notation of a

number is a product of two

factors:

• One factor is greater than or
  equal to 1, but less than 10.


• The other factor is a power
  of 10 in exponent form.

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