Estimate With Powers of 10
8th Grade Math · Flashcards
8TH GRADE MATH · FLASHCARDS
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QUESTION
What is
9.6
×
10
4
9.6\times 10^4
9.6
×
1
0
4
rounded to
1
1
1
significant digit in scientific notation?
QUESTION
What is
7
×
10
−
4
7\times10^{-4}
7
×
1
0
−
4
written as a standard decimal?
QUESTION
What does a positive exponent mean in
a
×
10
n
a\times10^n
a
×
1
0
n
when
n
>
0
n>0
n
>
0
?
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ANSWER
A large number; the decimal moves right
n
n
n
places. Positive powers of 10 multiply by 10 repeatedly, making larger values.
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