Respuesta :

5.3×10^5=53×10^4

53×10^4+3.8×10^4

=56.8×10^4

=5.68×10^5. Hope it help!

bec97

Answer:

5.68 x 10^5

Step-by-step explanation:

5.3 x 10^5 + 3.8 x 10^4 = 5.68 x 10^5

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