8.03x10^-8-2.56x10^-2
To subtract these numbers in scientific notation, we need to make sure the exponents are the same.
8.03x10^-8 - 2.56x10^-2
The exponent of the first number is -8, and the exponent of the second number is -2. To make them the same, we can convert the second number to scientific notation with an exponent of -8:
2.56x10^-2 = 0.256x10^-1 = 2.56x10^-2
Now that the exponents are the same, we can subtract the numbers:
8.03x10^-8 - 2.56x10^-8 = 5.47x10^-8
To subtract two numbers in scientific notation, you need to ensure that the exponents are the same. Let's rewrite the given numbers with the same exponent:
8.03x10^-8 = 0.0000000803
2.56x10^-2 = 0.0256
Now that both numbers have the same exponent (-2), you can subtract them:
0.0000000803 - 0.0256 ≈ -0.0255999197
Therefore, the final answer is approximately -0.0255999197.
To subtract two numbers in scientific notation, follow these steps:
Step 1: Convert both numbers to the same power of 10.
- The first number, 8.03x10^-8, is already in scientific notation.
- The second number, 2.56x10^-2, can be rewritten as 0.0256x10^-2.
Step 2: Subtract the numbers after aligning the decimal points.
- 8.03x10^-8 - 0.0256x10^-2 = 8.03x10^-8 - 0.0256x10^-2
Step 3: Perform the subtraction of the coefficients (numbers before the "x").
- 8.03 - 0.0256 = 8.0044
Step 4: Keep the power of 10 as the same in the result.
- Since both numbers have the same power of 10 (-8 and -2), the result will have the same power of 10.
Step 5: Write the final answer in scientific notation.
- The final answer is 8.0044x10^-8.