Standard form definition Flashcards
1
Q
What must the the value of A in the standard form be
A * 10n
A
A must be 1 or more but less than 10
2
Q
What does the n in the standard form represent
A * 10n
A
n is the exponent or ‘power of 10
it represents the number of 0’s in the multiples of 10
3
Q
Why do we need to use standard form to represent numbers
A
We do it when the numbers are very large or very small
4
Q
When n is positive, is the number very large or very small
A * 10n
A
it is very large
2 * 106 = 2 000 000
we add 6 zeros to the number
5
Q
When n is negative, is the number very large or very small
A * 10n
A
it is very large
2 * 10-6 = 0.000002
we shift the decimal place to the left
