Question

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

Answer 1

Answer:

400=4*10^2(scientific notation)

Explanation:

1.77*10^2=177

2.23*10^2=223

177+223=400

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Answer 2

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