Question

Add 1.77 × 10^2 and 2.23 × 10^3 and express the result in scientific notation.​

Answer 1

$1.77 \times 10^{2} = 1.77×100 = 177\\ 2.23 \times 10^{3} = 2.23×1000=2230 \\∴ 177 + 2230 = 2407$