Elementary Brain Teaser

I am a 2-digit number less than 84. The sum of my digits is 9. The ones digit is twice the tens digit. Who am I?

Correct Solutions:

1. Stephanie Parker. Sacred Heart School, Boise, ID
2. Sarah Shatzkes. Flatbush ES, Broolyn, NY
3. Jiyati Verma. Coventry ES, Yorktown, VA
4. Prakriti Verma. Coventry ES, Yorktown, VA
5. Ioana Enescu. Our Lady of Pompeii, New York, NY
6. Leonard Anghelescu. Broadlands PS, North York, Ontario, Canada
7. Tyler Hall. Wolcott Street School, LeRoy, NY
8. Katie Hall. Wolcott Street School, LeRoy, NY
9. Ryan Newman. Buena Vista Academy, Windermere, FL
10. Mohd Amir Huzairi Mohd Amin. Peninsular of Malaysia, Malaysia
11. Fabian Vargas. Myers ES, Rialto, CA
12. Amber Vargas. Myers ES, Rialto, CA
13. Aaron Miller. Ralya ES, Haslett, MI
14. Ashley Goldberg. Jefferson School, Jefferson MA
15. Yvonne Olivier. Ralya ES, Haslett, MI
16. Tim Matsudo. Ralya ES, Haslett, MI
17. Erica Betts. Ralya ES, Haslett, MI
18. Lauren Gentry. Mrs. Barker's Class, Shell Point, Beaufort, SC
19. Bianca Garcia. Mrs. Barker's Class, Shell Point, Beaufort, SC
20. Marc Wegener. Ralya ES, Haslett, MI
21. Ray Conroy. Ralya ES, Haslett, MI
22. Richard Burton. Ralya ES, Haslett, MI
23. Ben Keedy. Ralya ES, Haslett, MI
24. Shannon Morris. Ralya ES, Haslett, MI
25. Chris Sherman. Ralya ES, Haslett, MI
26. Caleb Johnson. Geneva ES, Geneva, FL
27. Michael Clark Geneva ES, Geneva, FL
28. Ryan George. Geneva ES, Geneva, FL
29. Sarah Shepherd. Jefferson School, Jefferson, MA
30. Navid Khodadadi. Norcross ES, Norcross, GA
31. Kody Hanks. Norcross ES, Norcross, GA
32. Robby Hunn. Geneva ES, Geneva, FL
33. Benjamin Delvalle. Colton ES, Spring Valley, NY
34. Francesca Ball. Colton ES, Spring Valley, NY
35. Daniel Guanzon. Colton ES, Spring Valley, NY
36. Adam Basile. Colton ES, Spring Valley, NY
37. Andrew Marquez. Colton ES, Spring Valley, NY
38. Talha Anwar. Colton ES, Spring Valley, NY
39. Matthew Watson. Colton ES, Spring Valley, NY
40. Eugene Berger. Colton ES, Spring Valley, NY
41. Leena Daniel. Colton ES, Spring Valley, NY
42. Michelle Ly. Colton ES, Spring Valley, NY
43. Lynn Leandre. Colton ES, Spring Valley, NY
44. R.T. Andaloro. Colton ES, Spring Valley, NY
45. Nithin Thomas. Colton ES, Spring Valley, NY
46. Jane M. Baby. Colton ES, Spring Valley, NY
47. Abraham Thomas. Colton ES, Spring Valley, NY
48. Leandra Cheng. Colton ES, Spring Valley, NY
49. Devin Cozart. Colton ES, Spring Valley, NY
50. Jaclyn Mackawgy. Colton ES, Spring Valley, NY
51. Nathan Elkins. Geneva ES, Geneva, FL
52. Kevin Nethers. Rainbow ES, Winter Springs, FL
53. Kevin Schein. Rainbow ES, Winter Springs, FL
54. Brett St. Onge. Rainbow ES, Winter Springs, FL
55. Justin Gibson. Geneva ES, Geneva , FL
56. David Babcock. Geneva ES, Geneva , FL
57. Reuben Falola. Briarhill MS, Highland Village, TX
58. Jacob Reynolds. Briarhill MS, Highland Village, TX
59. Daniel Geary. Lake Highland Prep, Orlando, FL
60. Thien Thai. Rostrevor College, Adelaide, South Australia
61. Hetul Modi. Thornwood PS, Mississauga, Ontario, Canada
62. Sono Shah. Carillon ES, Oviedo, FL
63. Suzi Salim. Sekolah Rantau Petronas, Malaysia
64. Rex Godsey. Newport ES, Crosby, TX
65. Mohd Afif Hilmi Mohd Amin. Sek. Durian Mas ll, Malaysia
66. Mohd Arif Hazuan Mohd Amin. Sek. Durian Mas ll, Malaysia
67. Kelli Conway. Walnut Creek MS, Erie, PA
68. Michael Burdin. Laura E. Richards ES, Gardiner, ME
69. Matt McGill. Walnut Creek MS, Erie, PA
70. Brooke Bushika. Rainbow ES, Winter Springs, FL
71. Kyle Dubose. Rainbow ES,Winter Springs,FL
72. Jaskaran Singh. Rainbow ES, Winter Springs, FL
73. Ashley Albinson.Rainbow ES, Winter Springs, FL
74. Warren Forsythe.Rainbow ES, Winter Springs, FL
75. Laura Cepero. Rainbow ES, Winter Springs, FL
76. J.J. McFadden. Rainbow ES, Winter Springs, FL
77. Elise Hernandez. Rainbow ES, Winter Springs, FL
78. Vince Raley. Rainbow ES, Winter Springs, FL
79. Desiderio Britton. Rainbow ES, Winter Springs, FL
80. Aubry Wingo. Rainbow ES, Winter Springs, FL
81. Leah Muller. Trafton Academy, Hammond, LA
82. Josh Pieper. Rainbow ES, Winter Springs, FL
83. Robert Thompson. Geneva ES, Geneva, FL
84. Caleb Davis. Geneva ES, Geneva, FL
85. Gerry Nielsen. Merritt Island ES. Merritt Island, FL
86. Eric Konczal. Rainbow ES, Winter Springs, FL
87. Caitie Davis. Ralya ES, Haslett, MI
88. Sam Brown. Ralya ES, Haslett, MI
89. Ben Morlock. Ralya ES, Haslett, MI
90. Ashley Olance. Ralya ES, Haslett, MI
91. Stephanie Colenda. Ralya ES, Haslett, MI
92. Vicky Hilbert. Rainbow ES, Winter Springs, FL
93. Garrett Lott. Ralya ES, Haslett, MI
94. Eric Konczal. Rainbow ES, Winter Springs, FL
95. Stephen Marcoux. Ralya ES, Haslett, MI
96. Chelsea Sengel. Rainbow ES, Winter Springs, FL
97. Elexia Machoka. Norcross ES, Norcross GA
98. Robbie Harrison. Geneva ES, Geneva, FL
99. Johanna Lindgren. Farila Skola, Sweden
100. T.J. Stone. Pine Tree Hill ES, Camden, SC
101. Brian Anderson. Pine Tree Hill ES, Camden, SC
102. Jeff Vernon Fenchel. Franklin ES, Madison, WI
103. Rossli Chace. Lincoln Akerman School, Hampton Falls, NH
104. Lauren Aouate. Rainbow ES, Winter Springs, FL
105. Adam Thornton. Walnut Creek MS, Erie, PA
106. Bryan Gray. Walnut Creek MS, Erie, PA
107. Michael Richter. Walnut Creek MS, Erie, PA
108. Jenny Chavez. Sunrise School, Albany, OR
109. Tony Aguilera. Sunrise School, Albany, OR
110. Tim Machado. Sunrise School, Albany, OR
111. Trevor Curry. Colton ES, Spring Valley, NY
112. Scott Salant. Colton ES, Spring Valley, NY
113. Christopher Ell. Colton ES, Spring Valley, NY
114. Sophie Anne Alesna. Colton ES, Spring Valley, NY
115. Julie Samuel. Colton ES, Spring Valley, NY
116. Vanessa Yolaine Cheris. Colton ES, Spring Valley, NY
117. Lia Mahabir. Colton ES, Spring Valley, NY
118. Greg Cohen. Colton ES, Spring Valley, NY
119. Ben Hedberg. Madison Ave. ES, El Cajon, CA
120. Sean Barry. Briarhill MS, Highland Village, TX
121. Ravi Lakdawala. Berkeley Prep, Tampa, FL
122. Kayla Locke. Geneva ES, Geneva, FL
123. Jamie Orr. Geneva ES, Geneva, FL
124. Tao Tao Chen. Ellis ES, Sunnyvale, CA
125. Kevin Schreck. Cross Lanes ES, Cross lanes, WV
126. Ben Holzer. O.H. Schultz ES, Mishicot, WI
127. Jennifer Lai.Rainbow ES, Winter Springs, FL
128. Elexia Machoka. Norcross ES, Norcross, GA
129. Brett Hodges. Rainbow ES, Winter Springs, FL
130. George Waters. Rainbow ES, Winter Springs, FL
131. Eric Konczal. Rainbow ES, Winter Springs, FL
132. Danielle Viculis. Rainbow ES, Winter Springs, FL
133. James Hansen. Sunrise ES, Albany, OR
134. Mike Moore. Sunrise ES, Albany, OR
135. Mike Gigante. Rainbow ES, Winter Springs, FL
136. Michelle Rogers. Rainbow ES, Winter Springs, FL
137. Suzannah Cavins. Geneva ES, Geneva, FL
138. Michelle Komo. Walnut Creek MS, Erie, PA
139. Jessica Baumann. Walnut Creek MS, Erie, PA
140. Benjamin Detter. Walnut Creek MS, Erie, PA
141. Zachary Haras. Walnut Creek MS, Erie, PA
142. Allyson Lagasse. Wells ES, Wells, MA
143. Kayla Patterson. Pine Tree Hill ES, Camden, SC
144. Anna Duncan. Pine Tree Hill ES, Camden, SC
145. Bailey Johnson. Wells ES, Wells ME
146. Tyler Sanders. Sonny Carter ES, Macon, GA
147. Kelli Conway. Walnut Creek MS, Erie, PA
148. John Abraham. Colton ES, Spring Valley, NY
149. Sean Antonucci. Colton ES, Spring Valley, NY
150. Adam Browning. Colton ES, Spring Valley, NY
151. Ashley Jasmin. Colton ES, Spring Valley, NY
152. Matthew Ortega. Colton ES, Spring Valley, NY
153. Jordan Laloan. Colton ES, Spring Valley, NY
154. Erick Palma. Rainbow ES, Winter Springs, FL
155. Thomas Welch. Rainbow ES, Winter Springs, FL
156. Patrick James Hampton. Wells ES, Wells, ME
157. Edward Sokolowski. Rainbow ES, Winter Springs, FL
158. Manuel Genao. Rainbow ES, Winter Springs, FL
159. Tyler Cole. Rainbow ES, Winter Springs, FL
160. Remus Turnier. Norcross ES, Norcross, GA
161. Janai Johnson. Norcross ES, Norcross, GA
162. Emmanuel Twum. Norcross ES, Norcross, GA
163. Evelyn Gonzalez. Norcross ES, Norcross, GA
164. Antonette Wyatt. Norcross ES, Norcross, GA
165. David Dellatto. Rainbow ES, Winter Springs, FL
166. Gloria Chan. Middlebury PS, Mississauga, Ontario
167. Kim Hoang. Rainbow ES, Winter Springs, FL
168. Damaris Britton. Rainbow ES, Winter Springs, FL
169. Vanessa Pattillo. Rainbow ES, Winter Springs, FL
170. Lindsey Wilkinson. Rainbow ES, Winter Springs, FL
171. Holly Lawrence. Rainbow ES, Winter Springs, FL
172. Billy Elkins. Harbins ES, Dacula, GA
173. Jack Demetree. Lake Highland Prep, Orlando, FL
174. Alex King. Rainbow ES, Winter Springs, FL
175. Kristie Arnold. Southeast MS, Ravenna, OH
176. Joe Podogil. Southeast MS, Ravenna, OH
177. Oleg Fortun. Colton School, Spring Valley, NY
178. Billy Huckfeldt. Buchanan ES, Pierre, SD
179. Josh Pieper. Rainbow ES, Winter Springs, FL
180. Meagen Hall. Rainbow ES, Winter Springs, FL
181. Briana Bennett. Rainbow ES, Winter Springs, FL
182. Monica Rochon. Carmen Arace MS, Bloomfield, CT
183. Teresa Morrison. Carmen Arace MS, Bloomfield, CT
184. Rashon Lumpkin. Carmen Arace MS, Bloomfield, CT
185. Brian Pierre. Carmen Arace MS, Bloomfield, CT
186. Taylor Stewart. Carmen Arace MS, Bloomfield, CT
187. Justin Jarvis. Carmen Arace MS, Bloomfield, CT
188. Jeffrey Hart. Norcross ES, Norcross, GA
189. Nick Calvoni. Rainbow ES, Winter Springs, FL
190. Mike Van Diggelen. Rainbow ES, Winter Springs, FL
191. Alben Amador. Partin ES, Oviedo, FL
192. Pephanie Aurllus. Partin ES, Oviedo, FL
193. Lawrence Bailey. Partin ES, Oviedo, FL
194. Christopher Benedict. Partin ES, Oviedo, FL
195. Brittany Berry. Partin ES, Oviedo, FL
196. Amanda Bibey. Partin ES, Oviedo, FL
197. Darren Busby. Partin ES, Oviedo, FL
198. Gariel Carrasquillo. Partin ES, Oviedo, FL
199. Danielle Chmura. Partin ES, Oviedo, FL
200. Amanda Craig. Partin ES, Oviedo, FL
201. Kirstie Durant. Partin ES, Oviedo, FL
202. David Feinberg. Partin ES, Oviedo, FL
203. Jennifer Fulghum. Partin ES, Oviedo, FL
204. Joseph Janssen. Partin ES, Oviedo, FL
205. Michael Knafou. Partin ES, Oviedo, FL
206. Jennifer Marion. Partin ES, Oviedo, FL
207. Charles Martin. Partin ES, Oviedo, FL
208. Thomas McGovern. Partin ES, Oviedo, FL
209. Jesse Robbins. Partin ES, Oviedo, FL
210. Taushie Sanders. Partin ES, Oviedo, FL
211. Matthew Self. Partin ES, Oviedo, FL
212. Jason Thomas. Partin ES, Oviedo, FL
213. Sheila Torres. Partin ES, Oviedo, FL
214. Clinton Walmer. Partin ES, Oviedo, FL
215. Brandon Griggs. Partin ES, Oviedo, FL
216. Cassidy Benson. Partin ES, Oviedo, FL
217. Tara Truesdale. Pine Hills ES, Camden, SC
218. Devin Wise. Pine Hills ES, Camden, SC
219. Chantel Fleming. Pine Hills ES, Camden, SC
220. Tamara Johnson. Pine Hills ES, Camden, SC
221. Ashley Cooke. Pine Hills ES, Camden, SC
222. Marcus Greene. Pine Hills ES, Camden, SC
223. Stephanie Colvin. Pine Hills ES, Camden, SC
224. Nicholas Colvin. Pine Hills ES, Camden, SC
225. Devin Whitehead. Pine Hills ES, Camden, SC
226. Hannah Gordon. Tracy ES, Easton, PA
227. Nate Upson. Wolcott Street School, LeRoy, NY
228. Ofir Yacobi. Tabib School, Rishon Le Zion, Israel
229. Jean Coffman, Melbourne, FL
230. Mark Schreck. Cross Lanes ES, Cross Lanes, WV
231. Vinnie Lorenzo. Richland ES, Johnstown, PA
232. Allison Miller. Lincoln MS, Portland, ME