4. Scientific Notation
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Now we can follow the steps. Let's begin with one hundredth.
Step | Work | Result |
---|---|---|
1 | |
a=001 |
2 | The decimal point moved 2 places to the right. | n=2 |
3 | Since the decimal moved to the right, we will write it as a×10-n. | 001×10-2 |
4 | Remove the unnecessary zeros. | 1×10-2 |
Let's continue with one micron. 0.000001
Step | Work | Result |
---|---|---|
1 | |
a=000001 |
2 | The decimal point moved 6 places to the right. | n=6 |
3 | Since the decimal moved to the right, we will write it as a×10-n. | 00000001×10-6 |
4 | Remove the unnecessary zeros. | 1×10-6 |
So one hundredth written in scientific notation is 1×10-2 and one micron is 1×10-6.
Commutative Property of Addition
a⋅1=a
a⋅am=a1+m