## Chemistry (4th Edition)

Published by McGraw-Hill Publishing Company

# Chapter 1 - Section 1.5 - Uncertainty in Measurement - Checkpoint - Page 21: 1.5.2

e) 761

#### Work Step by Step

Add all the numbers: $3.115 + 0.2281 + 712.5 + 45 = 760.8431$ The final answer cannot have any digit to the right of the decimal point (because there is no digit to the right of the decimal in the number 45.) Hence, the sum = 761

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