2.79×10
3
+5.31×10
3
2.79×10^3 + 5.31×10^3 = 8.1×10^3
5.01×10
3
−4.11×10
3
5.01×10^3 - 4.11×10^3 = 0.9×10^3
you're wrong
I apologize for the mistake in my previous response.
5.01×10^3 - 4.11×10^3 = 0.90×10^3 or 9.0×10^2
To add 2.79×10^3 and 5.31×10^3, we need to ensure that the exponents are the same.
1. Rewrite the numbers using the same exponent:
- 2.79×10^3 + 5.31×10^3
2. Add the numbers:
2.79 + 5.31 = 8.1
3. The result is 8.1×10^3.
To add two numbers in scientific notation, first, make sure the exponents are the same. In this case, both numbers have an exponent of 3.
Next, add the coefficients (the numbers before the "×10") together.
2.79 + 5.31 = 8.1
Finally, write the sum in scientific notation.
The sum of 2.79×10^3 and 5.31×10^3 is 8.1×10^3.