Posted by **anonymous** on Saturday, May 25, 2013 at 10:45am.

write in scientific notation

1) 400,000 = 4x10^5

2) 5412= 5.412x10^3

3) 0.00056= 5.6x10^-4

4) 0.0000814= 8.14x10^-5

- scientific notation am i doing it right? -
**MathMate**, Saturday, May 25, 2013 at 11:06am
All correct, well done!

- scientific notation am i doing it right? -
**anonymous**, Saturday, May 25, 2013 at 11:08am
YES!! thank you

- scientific notation am i doing it right? -
**anonymous**, Saturday, May 25, 2013 at 11:11am
can you check this please?

1) 8x10^4

= 80000.

2) 9.82x10^5

= 98,200,000.

3) 9x10^-3

= 0.0009

4) 7.24x10^-6

= 0.00000724

- scientific notation am i doing it right? -
**MathMate**, Saturday, May 25, 2013 at 11:15am
#1 is correct.

The power of 10 refers to the number of positions the decimal point has to be moved, *not* the number of zeroes.

So for #2, it should be

9.82000*100000=982000

Similarly, for #3,

9x10^3=9/1000=0.009

I will leave #4 for you to try.

- scientific notation am i doing it right? -
**anonymous**, Saturday, May 25, 2013 at 11:19am
.00000724

- scientific notation am i doing it right? -
**Mercy**, Saturday, May 25, 2013 at 11:22am
ur right

- scientific notation am i doing it right? -
**anonymous**, Saturday, May 25, 2013 at 11:26am
YES! thank you

- scientific notation am i doing it right? -
**MathMate to Mercy**, Saturday, May 25, 2013 at 11:29am
Merci!

- scientific notation am i doing it right? -
**Mercy**, Saturday, May 25, 2013 at 12:00pm
wat

- scientific notation am i doing it right? -
**MathMate**, Saturday, May 25, 2013 at 12:36pm
Sorry, finger faster than the brain, forgot to change since last post.

- scientific notation am i doing it right? -
**Mercy**, Saturday, May 25, 2013 at 1:06pm
change what

- scientific notation am i doing it right? -
**MathMate**, Saturday, May 25, 2013 at 5:23pm
signature.

- simplifying -
**jon**, Thursday, August 8, 2013 at 3:10pm
(3b)^3

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