What is the sum of 6.3×103 and 2.41×104 ? Use scientific notation to express your answer.
The sum of 6.3×10^3 and 2.41×10^4 can be found by adding the coefficients and keeping the same exponent:
6.3×10^3 + 2.41×10^4 = (6.3 + 2.41) × 10^4 = 8.71 × 10^4
So the sum is 8.71×10^4.