Respuesta :
Answer:
To round to three significant figures, look at the fourth significant figure. It's a 5 , so round up.
To round to four significant figures, look at the fifth significant figure. It's a 1 , so round down.
To round to two significant figures, look at the third significant figure. It's an 8 , so round up.
Step-by-step explanation:
use this trick
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