Operations with scientific notation
Perform the indicated operation. Each final answer must be written in scientific notation.
1. (2.34*10^5)*(4*10^8)
2. (4*10^3)*(4.5*10^3)
3. (5*10^5)*(4.3*10^2)
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2 answers

multiply the numbers and add the exponents. The answer has to be arranged so the number part is between 1 and 10.
for example your number 3.
(5*10^5)*(4.3*10^2)
= 5 * 4.3 * 10^(5+2)
= 21.5 * 10^7 but 21.5 = 2.15*10^1
so
2.15 * 10^1 * 10^7
= 2.15 * 10^8 👍
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answered by Damon 
Thanks.
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answered by shay
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