14 CHAPTER R Review of Basic Concepts Write each decimal as a fraction. (Do not write in lowest terms.) See Example 7. 83. 0.4 84. 0.6 85. 0.64 86. 0.82 87. 0.138 88. 0.104 89. 0.043 90. 0.087 91. 3.805 92. 5.166 93. 25.32 + 109.2 + 8.574 94. 90.527+32.43+589.8 95. 28.73 - 3.12 96. 46.88 - 13.45 97. 43.5 - 28.17 98. 345.1 - 56.31 99. 3.87 + 15 + 2.9 100. 8.2 + 1.09 + 12 101. 32.56+47.356+1.8 102. 75.2+123.96+3.897 103. 18 - 2.789 104. 29 - 8.582 Concept Check Complete the table of fraction, decimal, and percent equivalents. 117. 123.26 * 10 118. 785.91 * 10 119. 57.116 * 100 120. 82.053 * 100 Multiply or divide as indicated. See Example 10. 121. 0.094 * 1000 122. 0.025 * 1000 123. 1.62 , 10 124. 8.04 , 10 125. 124.03 , 100 126. 490.35 , 100 127. 23.29 , 1000 128. 59.8 , 1000 Fraction in Lowest Terms (or Whole Number) Decimal Percent 129. 1 100 0.01 130. 1 50 2% 131. 0.05 5% 132. 1 10 133. 1 8 0.125 134. 20% 135. 1 4 136. 1 3 137. 50% 138. 2 3 66 2 3%, or 66.6% 139. 0.75 140. 1 1.0 Write each fraction as a decimal. For repeating decimals, write the answer by first using bar notation and then rounding to the nearest thousandth. See Example 11. 141. 21 5 142. 9 5 143. 9 4 144. 15 4 145. 3 8 146. 7 8 147. 5 9 148. 8 9 149. 1 6 150. 5 6 105. 12.8 * 9.1 106. 34.04 * 0.56 107. 22.41 * 33 108. 55.76 * 72 109. 0.2 * 0.03 110. 0.07 * 0.004 111. 78.65 , 11 112. 73.36 , 14 113. 32.48 , 11.6 Multiply or divide as indicated. See Example 9. 116. 44.4788,5.27 114. 85.26 , 17.4 115. 19.967 , 9.74 Add or subtract as indicated. See Example 8.
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