To multiply two numbers:
For example:
3.5*103 x 4.3*10-5
3.5*4.3 = 15.05. Since this is not less than 10, divide it by 10 so that the mantissa of the answer is 1.505. Also, remember to add one to the power.
Sum of powers (exponents) = 3 + -5 + 1 (from the mantissa multiplication) = -1
So the final answer is 1.505*10-1
Multiply the mantissas; add the exponents. Finally, normalize. Here is an example:
(5 x 103) x (3 x 102)
Multiplying 5 x 3 (= 15) and adding the exponents, 3 + 2 (= 5), you get:
15 x 105
Normalize this to get:
1.5 x 106
Add them
Multiplying numbers in scientific notation is easier when the numbers are very, very large or very, very small. Multiplying 0.000000000385 x 0.0000000474 is a pain. Multiplying 3.85 x 10-10 x 4.74 x 10-8 is not.
exponential
Standard notation (in the UK) is the same as scientific notation. So the one rule to use is DO NOTHING!
It is 8.9*10^-5 in scientific notation
Yes, it does.
Add them
Multiplying numbers in scientific notation is easier when the numbers are very, very large or very, very small. Multiplying 0.000000000385 x 0.0000000474 is a pain. Multiplying 3.85 x 10-10 x 4.74 x 10-8 is not.
Multiplying each factor by powers of ten
exponential
Standard notation (in the UK) is the same as scientific notation. So the one rule to use is DO NOTHING!
It is 8.9*10^-5 in scientific notation
Scientific notation must include the numbers one to nine followed by a decimal point. Also, if the decimal is moved toward the left hand side, the number will become larger.
It is "(scientific notation)".
The scientific notation for 89,450 is: 8.945 × 104
This number in scientific notation is 9.8x10-5.
It is: 2.7*10^0 in scientific notation