1.2 Perform the following calculations to correct number of significant figures. a. 4.6 x 0.00300 x 193 b. 8.88 ÷ 99.40 c. (7.120 x 10-3 ) ÷ (6.000 x 10-5 ) d. (5.92 x 103 ) x 3.87 ÷ 100 1.3 Perform the following calculations to correct number of significant figures. a. 102 – 5.31 – 0.480 b. (3.42 x 10-4 ) + (5.007 x 10-4 ) c. 7.8 - (8.3 x 10-2 ) d. (3.8 x 106 ) - (8.99 x 106 ) 1.4 Perform the following conversions. Show your set ups. a. 683 nanometer (nm) to angstrom (Å) b. 520 mi/h to m/sec c. 0.714 g/cm3 to lb/ft3 d. -164°C to °F