1.OA.1
Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.2
| 1. | Happy Landings! 1 less than 4 | |
| 2. | Happy Landings! 1 less than 2 | |
| 3. | Happy Landings! 1 less than 1 | |
| 4. | Happy Landings! One less than 6 | |
| 5. | Happy Landings! 2 less than 10 | |
| 6. | Up We Go! 3 more than 7 | |
| 7. | Up We Go! 2 more than 7 | |
| 8. | Up We Go! Start at 0. Climb up 4 | |
| 9. | Happy Landings! Start at 10. Climb down 2 | |
| 10. | Happy Landings! Start at 10. Climb down 10 | |
| 11. | Click the ninth tiger from the front | |
| 12. | Click the sixth tiger from the back | |
| 13. | Click the eighth tiger from the front | |
| 14. | Up We Go! 1 more than 3 | |
| 15. | Up We Go! 1 more than 6 | |
| 16. | Up We Go! 1 more than 2 | |
| 17. | Up We Go! 1 more than 4 | |
| 18. | Up We Go! 1 more than 8 | |
| 19. | Happy Landings! 1 less than 5 | |
| 20. | Happy Landings! 1 less than 4 | |
| 21. | Happy Landings! 1 less than 8 | |
| 22. | Happy Landings! 1 less than 9 | |
| 23. | Happy Landings! 1 less than 3 | |
| 24. | 1 less, 1 more than 15 | |
| 25. | 1 less, 1 more than 17 | |
| 26. | 1 less, 1 more than 20 | |
| 27. | 1 less, 1 more than 8 | |
| 28. | 1 less, 1 more than 12 | |
| 29. | 2 less, 2 more than 4 | |
| 30. | 2 less, 2 more than 12 | |
| 31. | 2 less, 2 more than 16 | |
| 32. | 2 less, 2 more than 9 | |
| 33. | 2 less, 2 more than 11 | |
| 34. | Same Number? | |
| 35. | 2 clowns, add 2 more | |
| 36. | Five little ducks 2 + 2 | |
| 37. | Five little ducks 2 + 3 | |
| 38. | Five little ducks 1 + 2 | |
| 39. | Five little ducks 1 + 4 | |
| 40. | Five little ducks 1 + 1 | |
| 41. | Card Games - R1 + B5 | |
| 42. | Up, Down, Flying Around: 5 add 2 | |
| 43. | Up, Down, Flying Around: 4 add 3 | |
| 44. | Up, Down, Flying Around: 3 add 4 | |
| 45. | Up, Down, Flying Around: 2 add 4 | |
| 46. | Up, Down, Flying Around: 3 add 3 | |
| 47. | Up We Go - Start at 3. Add 4 more. | |
| 48. | Up We Go - Start at 2. Add 4 more. | |
| 49. | Up We Go - Start at 6. Add 2 more. | |
| 50. | Up We Go - Start at 5. Add 2 more. | |
| 51. | Bring a Block 4 + 4 = ? | |
| 52. | Ducks 5 + 3 = ? | |
| 53. | Who's been baking cakes? 5 + 3 = ? | |
| 54. | Who's been baking cakes? 4 + 4 = ? | |
| 55. | Who's been baking cakes? 2 + 6 = ? | |
| 56. | Who's been baking cakes? 8 + 0 = ? | |
| 57. | Up we go - What is 2 more than 1? | |
| 58. | Up we go - What is 5 plus 3? | |
| 59. | Up we go - What is 1 more than 8? | |
| 60. | Up we go - 4 add 2 | |
| 61. | Making 8 - Choose 2 groups that add to 8: 5 + 3 | |
| 62. | Which number is 10 more than 4? | |
| 63. | Which number is 10 more than 5? | |
| 64. | Which number is 10 more than 2? | |
| 65. | Which number is 10 more than 6? | |
| 66. | Which number is 10 more than 1? | |
| 67. | Teens zone: 4 more than 9 | |
| 68. | Teens zone: 3 more than 9 | |
| 69. | Teens zone: 6 more than 5 | |
| 70. | Teens zone: 7 more than 8 | |
| 71. | Teens zone: 2 more than 9 | |
| 72. | Word Wise: The sum of 10 and 4 | |
| 73. | Word Wise: Add 1 and 12 | |
| 74. | Word Wise: Add 5 to 7 | |
| 75. | Word Wise: 7 plus 6 | |
| 76. | Word Wise: 8 plus 3 | |
| 77. | Word Wise: 7 plus 4 | |
| 78. | Is the answer...?: Click all boxes with answer 8. | |
| 79. | Is the answer...?: Click all boxes with answer 12 | |
| 80. | Is the answer...?: Click all boxes with answer 14 | |
| 81. | Is the answer...?: Click all boxes with answer 11 | |
| 82. | Is the answer...?: Click all boxes with answer 15 | |
| 83. | Is the answer...?: Click all boxes with answer 13 | |
| 84. | Changing Numbers: 7 to 11 | |
| 85. | Changing Numbers: 8 to 13 | |
| 86. | Changing Numbers: 9 to 12 | |
| 87. | Frog swamp: 6 - 3 = ? | |
| 88. | Frog swamp: 6 - 5 = ? | |
| 89. | Frog swamp: 6 - 4 = ? | |
| 90. | Frog swamp: 6 - 1 = ? | |
| 91. | Frog swamp: 6 - 2 = ? | |
| 92. | Happy Landings 7 minus 1 | |
| 93. | Happy Landings 7 minus 2 | |
| 94. | Happy Landings 7 minus 3 | |
| 95. | Happy Landings 7 minus 4 | |
| 96. | Happy Landings 6 minus 2 | |
| 97. | Happy Landings 6 minus 3 | |
| 98. | Happy Landings 6 minus 4 | |
| 99. | Happy Landings 6 minus 5 | |
| 100. | Happy Landings 5 minus 5 | |
| 101. | Seven Take Seven | |
| 102. | Seven Take Four | |
| 103. | Seven Take Six | |
| 104. | Seven Take Five | |
| 105. | Seven Take Three | |
| 106. | Happy Landings 8 - 1 | |
| 107. | Happy Landings 6 - 3 | |
| 108. | Happy Landings 5 minus 3 | |
| 109. | Happy Landings 7 - 2 | |
| 110. | Happy Landings 4 - 3 | |
| 111. | Planes & clouds 8 - 4 | |
| 112. | Planes & clouds 8 - 2 | |
| 113. | Planes & clouds 8 - 3 | |
| 114. | Happy landings 6 less than 10 | |
| 115. | Happy landings 9 take away 3 | |
| 116. | Happy Landings 9 minus 6 | |
| 117. | Happy landings 10 take away 2 | |
| 118. | Happy landings 9 less than 10 | |
| 119. | Spot the difference between 3 and 5 | |
| 120. | Spot the difference between 4 and 4 | |
| 121. | Spot the difference between 4 and 6 | |
| 122. | Spot the difference between 4 and 7 | |
| 123. | Spot the difference between 2 and 8 | |
| 124. | Nine Take Four | |
| 125. | Nine Take Five | |
| 126. | Nine Take Eight | |
| 127. | Nine Take Six | |
| 128. | Nine Take Three | |
| 129. | Happy Landings 7 less than 10 | |
| 130. | Happy Landings 8 minus 5 | |
| 131. | Happy Landings Take 4 from 9 | |
| 132. | Happy Landings 8 Take away 4 | |
| 133. | Spot the difference between 4 and 5 | |
| 134. | Spot the difference between 3 and 5 | |
| 135. | Spot the difference between 2 and 6 | |
| 136. | Spot the difference between 5 and 7 | |
| 137. | Spot the difference between 2 and 7 | |
| 138. | Hide and Seek: 7 trolls - 5 | |
| 139. | Hide and Seek: 7 trolls - 4 | |
| 140. | Hide and Seek: 6 trolls - 4 | |
| 141. | Hide and Seek: 8 trolls - 4 | |
| 142. | 7 Clocks: How many more to make 15? | |
| 143. | 9 Cars: How many more to make 16? | |
| 144. | Party time: 17 - 9 | |
| 145. | Party time: 16 - 9 | |
| 146. | Party time: 19 - 9 | |
| 147. | Party time: 18 - 9 | |
| 148. | Party time: 12 - 9 | |
| 149. | Party time: 11 - 9 | |
| 150. | Party time: 10 - 9 | |
| 151. | Party time: 9 - 9 | |
| 152. | Party time: 15 - 9 | |
| 153. | Find the first number: ? count on 5 = 8 | |
| 154. | Find the first number: ? count on 1 = 8 | |
| 155. | Find the first number: ? count on 2 = 8 | |
| 156. | Find the first number: ? count back 1 = 8 | |
| 157. | Find the first number: ? count back 2 = 8 | |
| 158. | Find the first number: ? count back 3 = 8 | |
| 159. | Find the first number: ? count back 4 = 8 | |
| 160. | Find the first number: ? count on 3 = 8 | |
| 161. | Find the first number: ? count on 4 = 8 | |
| 162. | Word Wise: Subtract 5 from 19 | |
| 163. | Word Wise: Subtract 4 from 17 | |
| 164. | Word Wise: Subtract 9 from 20 | |
| 165. | Word Wise: 17 take away 6 | |
| 166. | Word Wise: 19 take away 9 | |
| 167. | Word Wise: 6 less than 12 | |
| 168. | Slippery fish 9 - 9 = ? | |
| 169. | Slippery fish 14 - 8 = ? | |
| 170. | Slippery fish 18 - 12 = ? | |
| 171. | Slippery fish 12 - 3 = ? | |
| 172. | Slippery fish 15 - 10 = ? | |
| 173. | Slippery fish 10 - 9 = ? | |
| 174. | Slippery fish 11 - 7 = ? | |
| 175. | Changing numbers: 18 to 9 | |
| 176. | Changing numbers: 16 to 12 | |
| 177. | Changing numbers: 12 to 7 | |
| 178. | Changing numbers: 20 to 9 | |
| 179. | Changing numbers: 14 to 9 | |
| 180. | Slippery fish 16 - 7 | |
| 181. | Joanna scrambles eggs: 2+2 | |
| 182. | 8 spaces to park: 8 - 4 | |
| 183. | 8 spaces to park: 8 - 6 | |
| 184. | 8 spaces to park: 8 - 7 | |
| 185. | 8 spaces to park: 8 - 5 | |
| 186. | Card Games - B2 + B4 | |
| 187. | Card Games - B5 + B1 | |
| 188. | Card Games - R1 + R5 | |
| 189. | Card Games - R5 + B1 | |
| 190. | Ducks 5 + 2 = ? | |
| 191. | Ducks 6 + 1 = ? | |
| 192. | Ducks 2 + 6 = ? | |
| 193. | Ducks 3 + 4 = ? | |
| 194. | Red Blocks 10 - 4 | |
| 195. | Red Blocks 10 - 1 | |
| 196. | Red Blocks 10 - 2 | |
| 197. | Circus Times: 1 row of lions x 5 per row | |
| 198. | Circus Times: 2 rows of dogs x 3 per row | |
| 199. | Circus Times: 3 rows of monkeys x 3 per row | |
| 200. | Circus Times: 2 rows of clowns x 3 per row | |
| 201. | Bob's bottle tops: 3 rows of ? = 9 | |
| 202. | Beaver collects cans: 3+3 | |
| 203. | Teen Zone: Take 7 from 16 | |
| 204. | Teen Zone: Take 7 from 14 | |
| 205. | Teen Zone: Take 9 from 17 | |
| 206. | Counter Times: 2 groups of ?. There are 6 altogether. | |
| 207. | Counter Times: 3 groups of ?. There are 6 altogether. | |
| 208. | Counter Times: 2 groups of ?. There are 8 altogether. | |
| 209. | Counter Times: 4 groups of ?. There are 8 altogether. | |
| 210. | Counter Times: 2 groups of ?. There are 4 altogether. | |
| 211. | Counter Times: 6 groups of ?. There are 12 altogether. | |
| 212. | Counter Times: 2 groups of ?. There are 12 altogether. | |
| 213. | Counter Times: 5 groups of ?. There are 10 altogether. | |
| 214. | Counter Times: 2 groups of ?. There are 10 altogether. | |
| 215. | Counter Times: 3 groups of ?. There are 12 altogether. | |
| 216. | Counter Times: 3 groups of ?. There are 9 altogether. | |
| 217. | Counter Times: 3 groups of ?. There are 15 altogether. | |
| 218. | Counter Times: 3 groups of ?. There are 18 altogether. | |
| 219. | Counter Times: 4 groups of ?. There are 8 altogether. | |
| 220. | Counter Times: 4 groups of ?. There are 12 altogether. | |
| 221. | Counter Times: 4 groups of ?. There are 16 altogether. | |
| 222. | Party times: 2 rows of cakes x 3 per row | |
| 223. | Party times: 2 groups of balloons x 4 per group | |
| 224. | Party times: 3 rows of presents x 3 per row | |
| 225. | Nine Take Seven | |
| 226. | 9 Clocks: How many more to make 15? | |
| 227. | 5 Clocks: How many more to make 15? | |
| 228. | 7 Cars: How many more to make 16? |