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March 31, 2015

March 31, 2015

Posted by **Delilah** on Friday, September 28, 2012 at 7:05pm.

5. 3.2 x 10^3

7. 4.1 x 10^8

9. Write the average weight of a blue whale, 2.6 x 10^5, in standard form.

15. 2.5 x 10^-3

17. 1.05 x 10^-2

19. Write the size of a grain of very fine sand, about 9.35 x 10^-3 cm, in standard form.

Can somebody help? I have been stuck on these questions for 30 minutes....

Thanks.

- 7th grade math standard form scientific notation -
**Reiny**, Friday, September 28, 2012 at 11:53pmI don't understand what you mean by "I have been stuck on these questions for 30 minutes.... "

Are you just staring at the questions?

The concept of scientific notation can be learned in less than 5 minutes.

5. 3.2 x 10^3

= 5.3 x 1000

= 5300

15 . 2.5 x 10^-3

= 2.5 x .001

= 0.0025

You try the others.

- 7th grade math standard form scientific notation -
**misty**, Monday, May 26, 2014 at 1:12pmwhat operation is being performed 1.2x10^2+2.5x10^4=

- 7th grade math standard form scientific notation -
**Anonymous**, Monday, September 22, 2014 at 10:10pm5.7 * 10^6

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