To round to 3 decimal places, look at the digit in the 4th decimal place.
• 0.00756 → the 3rd decimal digit is 7, the 4th decimal digit is 5
• The 4th decimal digit is 5, which is 5 or more, so we round up
• 7 becomes 8
• 0.00756 rounded to 3 decimal places = 0.008
Final Answer: 0.008