## General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

(a) $1.85$ (b) $88.2$ (c) $0.00474$ (d) $8810$ (e) $1.83$
1. Identify the fourth significant figure (the one we are going to drop): (a) $1.85\underline 4$ (b) $88.2\underline 0 38$ (c) $0.00473\underline 8 265$ (d) $880 \underline 7$ (e) $1.83 \underline 2$ 2. Remove* the fourth SF and all the digits to its right. If this digit is greater or equal to 5, add 1 to the third digit. * If the digits are on the left of the decimal point, just substitute them with a "0". (a) $1.85$ (b) $88.2$ (c) $0.00474$ (d) $8810$ (e) $1.83$