3.NBT.2
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
| 1. | 1 less, 1 more than 600 | |
| 2. | Changing Numbers: 24 to 240 | |
| 3. | 10 less, 10 more than 508 | |
| 4. | 10 less, 10 more than 300 | |
| 5. | 100 less, 100 more than 475 | |
| 6. | 10 less, 100 more than500 | |
| 7. | 100 less, 10 more than 358 | |
| 8. | 100 less, 100 more than 458 | |
| 9. | Changing Numbers - 45 to 145 | |
| 10. | Changing Numbers - 235 to 225 | |
| 11. | Changing Numbers - 990 to 890 | |
| 12. | Changing Numbers - 576 to 577 | |
| 13. | Changing Numbers - 25 to 250 | |
| 14. | Changing Numbers - 17 to 170 | |
| 15. | Changing Numbers - 36 to 136 | |
| 16. | Changing Numbers - 455 to 555 | |
| 17. | Changing Numbers - 65 to 650 | |
| 18. | 100 less, 100 more than 765 | |
| 19. | 100 less, 100 more than 342 | |
| 20. | 100 less, 100 more than 897 | |
| 21. | 100 less, 100 more than 453 | |
| 22. | 100 less, 100 more than 213 | |
| 23. | What's the Number?: 240 250 260 270 280 290 * | |
| 24. | Continue the Pattern: 010 a 010 b 010 c 010 d | |
| 25. | Make a Number! | |
| 26. | Make a Number! | |
| 27. | Make a Number! | |
| 28. | Pattern Pieces: 6 9 * 15 18 * 24 * | |
| 29. | Pattern Pieces: 6 12 18 24 * * * * | |
| 30. | Up and Away!: Count by tenths | |
| 31. | Up and Away!: Count by tenths | |
| 32. | Make a Number!: 4 tenths, 2 ones | |
| 33. | Make a Number!: 7 ones, 8 tenths | |
| 34. | Make a Number!: 7 tenths, 9 ones | |
| 35. | Your Place or Mine? Tenths, tens 64.2 | |
| 36. | Add these 3 numbers: 14 + 5 + 2 | |
| 37. | Add these 3 numbers: 11 + 4 + 5 | |
| 38. | Add these 3 numbers: 9+10+4 | |
| 39. | Add these 3 numbers: 13 + 7 + 6 | |
| 40. | Add Board: 60 + 23 | |
| 41. | Add Board: 30 + 70 | |
| 42. | Add Board: 40 + 60 | |
| 43. | Add Board: *0 + 20 = 100 | |
| 44. | Add Board: 63 + 20 | |
| 45. | Adding tens: 26 + ? = 36 | |
| 46. | Adding tens: 46 + ? = 56 | |
| 47. | Adding tens: 64 + ? = 94 | |
| 48. | Adding tens: 38 + 20 = ? | |
| 49. | Adding tens: 56 + 30 = ? | |
| 50. | Adding tens: ?+ 36 = 66 | |
| 51. | Adding tens: ?+ 73 = 83 | |
| 52. | Adding tens: ?+ 46 = 86 | |
| 53. | Now Add This! 34+11, 34+12 | |
| 54. | Now Add This! 33+19, 33+21 | |
| 55. | Addition Chains | |
| 56. | Addition Chains | |
| 57. | Addition Chains | |
| 58. | Addition Chains | |
| 59. | Addition Chains | |
| 60. | Add three numbers: 14 + 7 + 3 | |
| 61. | Add three numbers: 10 + 12 + 8 | |
| 62. | On the board 13 + 15 = ? | |
| 63. | On the board 12 + 13 = ? | |
| 64. | On the board 14 + 12 = ? | |
| 65. | On the board 18 + 11 = ? | |
| 66. | On the board 15 + 14 = ? | |
| 67. | On the board 963 + 5 = ? | |
| 68. | On the board 242 + 6 = ? | |
| 69. | On the board 781 + 8 = ? | |
| 70. | On the board 427 + 2 = ? | |
| 71. | On the board 113 + 4 = ? | |
| 72. | Adding tens: 120 + ? = 140; 120 + 50 = ? | |
| 73. | Adding tens: 145 + ? = 155, 145 + 30 = ? | |
| 74. | Adding tens: 138 + ? = 178, 178 + 20 = ? | |
| 75. | Number Detectives: 24 + 6 = ? | |
| 76. | Number Detectives: 5 + 25 = ? | |
| 77. | Use the pattern: 2+4, 12+4, 120 + 40 | |
| 78. | Use the pattern: 4+1, 14+1, 140+10 | |
| 79. | Use The Pattern: 4+3, 14+3, 140+30 | |
| 80. | Use The Pattern: 2+7, 12+7, 120+70 | |
| 81. | Use The Pattern: 5+4, 15+4, 150+40 | |
| 82. | Use The Pattern: 3+6, 13+6, 130+60 | |
| 83. | Use The Pattern: 5+3, 15+3, 150+30 | |
| 84. | On The Board 135+100 | |
| 85. | On The Board 254+100 | |
| 86. | On The Board 458+100 | |
| 87. | On The Board 765+100 | |
| 88. | On The Board 553+100 | |
| 89. | Number detectives: 30+?, 50+?, 60+? =100 | |
| 90. | Number detectives: 80+?, 90+?, 40+?=100 | |
| 91. | Number detectives: 10+?, 70+?, 50+?=100 | |
| 92. | Addition Chains: 4 + 5 + 6 + 8, 11 + 4 + 3+ 7 | |
| 93. | Addition Chains: 3 + 2 + 4 + 8, 4 + 3 + 7 + 4 | |
| 94. | 100 Zone: 93 + 10, 94 + 10, 96 + 10 | |
| 95. | 100 Zone: 90 + 10, 92 + 10, 97 + 10 | |
| 96. | 100 Zone: 95 + 10,10 + 95, 105 - 10 | |
| 97. | 100 Zone: 98 + 10,10 + 98, 108 - 10 | |
| 98. | 100 Zone: 99 + 10,109 - 10, 10 + 99 | |
| 99. | Add it up: Addition with trading 52+9 | |
| 100. | Add it up: Addition with trading 46+8 | |
| 101. | Add it up: Addition with trading 22+5 | |
| 102. | Add it up: Addition with trading 26+17 | |
| 103. | Add it up: Addition with trading 38+14 | |
| 104. | Add three numbers: 2 + 13 + 9 | |
| 105. | Add three numbers: 15 + 7 + 8 | |
| 106. | Add three numbers: 17 + 7 + 12 | |
| 107. | Number detectives: ? + 9 = 49 | |
| 108. | Number detectives: ? + 11 = 53 | |
| 109. | Crossing 100: 4 more than 99 | |
| 110. | Crossing 100: 7 more than 97 | |
| 111. | Crossing 100: 8 more than 98 | |
| 112. | Crossing 100: 9 more than 92 | |
| 113. | Crossing 100: 5 more than 97 | |
| 114. | True or False: 12+14=26 | |
| 115. | True or False: 12+12=24 | |
| 116. | True or False: 13+14=28 | |
| 117. | True or False: 15+12=27 | |
| 118. | True or False: 16+11=25 | |
| 119. | Number detectives: 22+9 = ? | |
| 120. | Number detectives: 51+11 = ? | |
| 121. | Number detectives: 35+? = 46 | |
| 122. | Add Board: 24 + 15 = ? | |
| 123. | Add Board: 45 + 34 = ? | |
| 124. | Add Board: 67 + 12 = ? | |
| 125. | Add Board: 32 + 65 = ? | |
| 126. | Add Board: 25 + 13 = ? | |
| 127. | Beyond 70: 5 more than 79 | |
| 128. | Beyond 70: 9 more than 72 | |
| 129. | N/D Mysteries of 40! 34+? 30+? 38+?=40 | |
| 130. | N/D Mysteries of 40! 31+? 36+? 30+?=40 | |
| 131. | N/D Mysteries of 40! 33+? 37+? 32+?=40 | |
| 132. | N/D Mysteries of 40! 32+? 39+? 34+?=40 | |
| 133. | N/D Mysteries of 40! 31+? 35+? 37+?=40 | |
| 134. | 100 Zone: 95+7=? 101-?=99 ?+6=103 | |
| 135. | 100 Zone: 95+6=? 103-?=99 ?+6=104 | |
| 136. | 100 Zone: 98+7=? 105-?=98 ?+6=105 | |
| 137. | 100 Zone: 98+6=? 102-?=98 ?+5=103 | |
| 138. | 100 Zone: 98+3=? 101-?=97 ?+5=102 | |
| 139. | Add it up: 69+23 | |
| 140. | Add it up: 46+26 | |
| 141. | Add it up: 37+24 | |
| 142. | Add it up: 28+25 | |
| 143. | 36 + 12 = 48 So what else is true? | |
| 144. | Changing Numbers 29 to 34 | |
| 145. | Changing Numbers 67 to 78 | |
| 146. | Changing Numbers 98 to 101 | |
| 147. | Changing Numbers 87 to 92 | |
| 148. | Changing Numbers 59 to 63 | |
| 149. | Changing Numbers 96 to 101 | |
| 150. | Number detectives *+109 = 113 | |
| 151. | Number detectives *+4 = 103 | |
| 152. | Number detectives *+5 = 103 | |
| 153. | Number detectives 235+6 = * | |
| 154. | Number detectives 98+7=* | |
| 155. | Number detectives 95+*=101 | |
| 156. | Number detectives 97+*=103 | |
| 157. | Use The Pattern 3+5 30+50 300+500 | |
| 158. | Use The Pattern 3+6 30+60 600+300 | |
| 159. | Use The Pattern 2+4 20+40 200+400 | |
| 160. | Use The Pattern 3+2 30+20 200+300 | |
| 161. | Use The Pattern 6+2 60+20 600+200 | |
| 162. | Add board 5* + 46 = *8 | |
| 163. | Add board 35 + *3 = 7* | |
| 164. | Addition Chains 21 + 3 + 6 + 5, 60 + 4 + 3 + 2 | |
| 165. | Addition Chains 33 + 4 + 10 + 5, 28 + 3 + 9 + 8 | |
| 166. | Addition Chains 23 + 5 + 4 + 9, 60 + 8 + 3 + 10 | |
| 167. | Addition Chains 95 + 4 + 2 + 12, 94 + 3 + 3 + 7 | |
| 168. | Addition Chains 100 + 5 + 5 + 7, 99 + 3 + 6 + 2 | |
| 169. | Beyond 90: 98 + 4 | |
| 170. | Beyond 100: 104 + 7 | |
| 171. | Beyond 110: 119+3 | |
| 172. | Beyond 120: 128+6 | |
| 173. | Beyond 130: 139 + 5 | |
| 174. | Add It Up: Addition with regrouping 246+8 | |
| 175. | Add It Up: Addition with regrouping 289+4 | |
| 176. | Add It Up: Addition with regrouping 545+8 | |
| 177. | Add It Up: Addition with regrouping 637+5 | |
| 178. | Add It Up: Addition with regrouping 124+7 | |
| 179. | Changing numbers: 12 + 10, +11, +111 | |
| 180. | Changing numbers: 28 + 10, +11, +111 | |
| 181. | Changing numbers: 49 + 10, +11, +111 | |
| 182. | Changing numbers: 88 + 10, +11, +111 | |
| 183. | Changing numbers: 29 + 10, +11, +111 | |
| 184. | Use the pattern: 6+3, 60+30, 600+300 | |
| 185. | Use the pattern: 2+4, 20+40, 200+400 | |
| 186. | Use the pattern: 2+6, 20+60, 200+600 | |
| 187. | Use the pattern: 1+7, 10+70, 100+700 | |
| 188. | Add board 152+40 | |
| 189. | Add board 122+46 | |
| 190. | Add board 173+26 | |
| 191. | Add board 164+33 | |
| 192. | Add board 163+32 | |
| 193. | On the Board *8 + 51 = 7* | |
| 194. | Adding Tens 167 + * = 197 | |
| 195. | Adding Tens: 416 + 50 = * | |
| 196. | Adding Tens: 542 + 50 = * | |
| 197. | Adding Tens: * + 726 = 786 | |
| 198. | Adding Tens: * + 314 = 394 | |
| 199. | Number Detectives: 100 Pairs 85 + ?, 75 + ?, 45 +?= 100 | |
| 200. | Add It Up: Addition with regrouping 45 + 17 | |
| 201. | Add It Up: Addition with regrouping 63 + 28 | |
| 202. | Add It Up: Addition with regrouping 34 + 48 | |
| 203. | Add It Up: Addition with regrouping 29 + 52 | |
| 204. | Add It Up: Addition with regrouping 46 + 37 | |
| 205. | Add It Up: Addition with regrouping 968+ 5 | |
| 206. | Add It Up: Addition with regrouping 457+7 | |
| 207. | Add It Up: Addition with regrouping 213+9 | |
| 208. | Add It Up: Addition with regrouping 518+6 | |
| 209. | Add It Up: Addition with regrouping 812+ 8 | |
| 210. | True or False?: 12 + 14 = 26 | |
| 211. | True or False?: 19 + 13 = 34 | |
| 212. | True or False?: 17 + 19 = 36 | |
| 213. | True or False?: 14 + 17 = 33 | |
| 214. | True or False?: 12 + 13 = 25 | |
| 215. | Use the pattern: 5+2,50+20, 500+200=? | |
| 216. | Use the pattern: 5+4,50+40, 500+400=? | |
| 217. | Use the pattern: 7+1,70+10, 700+100=? | |
| 218. | Use the pattern: 2+3,20+30, 200+300=? | |
| 219. | Mysteries of 30!: 20+?, 15+?, 5+? | |
| 220. | Mysteries of 30!: 19+?, 10+?, 16+? | |
| 221. | Mysteries of 30!: 12+?, 13+?, 14+? | |
| 222. | Mysteries of 30!: 9+?, 5+?, 7+? | |
| 223. | Mysteries of 30!: 26+?, 28+?, 22+? | |
| 224. | Number detectives: 60+?, 50+?, 75+?=100 | |
| 225. | Number detectives: 65+?, 55+?, 85+?=100 | |
| 226. | Number detectives: ? - 5 = 10 | |
| 227. | Number detectives: ? - 7 = 6 | |
| 228. | Number detectives: ? - 8 = 4 | |
| 229. | Write the missing number: 11 + ? + 2 = 20 | |
| 230. | Write the missing number: 6 + 9 + ? = 20 | |
| 231. | Taking Tens: 90 - ? = 70 | |
| 232. | 12 + 7 = 19 - so what else is true? | |
| 233. | Put in the missing number: 5 + 4 + ? = 16 | |
| 234. | Put in the missing number: 11 + ? + 6 = 25 | |
| 235. | Put in the missing number: 9 + 2 + ? = 19 | |
| 236. | Put in the missing number: ? + 10 + 14 = 28 | |
| 237. | Subtraction Chain - 21-4 =?-1= 16 | |
| 238. | Use the pattern: 10, 20 & 80 - 5 = ? | |
| 239. | Use the pattern: 10, 20 & 40 - 3 = ? | |
| 240. | Use the pattern: 10, 20 & 90 - 7 = ? | |
| 241. | Use the pattern: 10, 20 & 50 - 4 = ? | |
| 242. | Use the pattern: 10, 20 & 30 - 8 = ? | |
| 243. | Taking ten: 46-10 | |
| 244. | Taking ten: 72-10 | |
| 245. | Taking ten: 39-10 | |
| 246. | Taking ten: 55-10 | |
| 247. | Taking ten: 81-10 | |
| 248. | Mysteries of Fifty: 50-?=42, 50-?=45 | |
| 249. | Mysteries of Fifty: 50-?=48, 50-?=43 | |
| 250. | Mysteries of Fifty: 50-?=44, 50-?=47 | |
| 251. | Mysteries of Forty: 40-?=36, 40-?=31 | |
| 252. | Mysteries of Forty: 40-?=33, 40-?=39 | |
| 253. | Mysteries of Forty: 40-?=35, 40-?=38 | |
| 254. | Use the pattern 16-4=? 26-3=?, 36-4=? | |
| 255. | Use the pattern 14-3=? 24-3=?, 34-3=? | |
| 256. | Use the pattern 15-3=? 25-3=?, 35-3=? | |
| 257. | Use the pattern 18-5=? 28-5=?, 38-5=? | |
| 258. | Use the pattern 16-7=? 26-7=?, 36-7=? | |
| 259. | Use the pattern 13-6=? 23-6=?, 33-6=? | |
| 260. | Use the pattern 11-5=? 21-5=?, 31-5=? | |
| 261. | Use the pattern 12-9=? 22-9=?, 32-9=? | |
| 262. | Use the pattern 19-4=? 29-4=?, 39-4=? | |
| 263. | Use the pattern 17-8=? 27-8=?, 37-8=? | |
| 264. | 100 grid: 41 take away 6 | |
| 265. | 100 grid: 53 subtract 8 | |
| 266. | 100 grid: 32 take away 5 | |
| 267. | 100 grid: 84 take away 8 | |
| 268. | 100 grid: 46 take away 9 | |
| 269. | 100 grid: 77 take away 9 | |
| 270. | Subtract from 30: 30 - 20, 7 & 12 | |
| 271. | Subtract from 30: 30 - 15, 10 & 6 | |
| 272. | Subtract from 30: 30 - 11, 5 & 21 | |
| 273. | Subtract from 30: 30 - 8, 30 & 14 | |
| 274. | Subtract from 30: 30 - 17, 30 & 5 | |
| 275. | The 9 family: Take 9, 19 & 29 from 57 | |
| 276. | The 9 family: Take 9, 19 & 29 from 44 | |
| 277. | The 9 family: Take 9, 19 & 29 from 36 | |
| 278. | Same Difference - Difference between 10 and 40. | |
| 279. | Take it away: Subtraction with decomposition 45-8 | |
| 280. | Take it away: Subtraction with decomposition 43-7 | |
| 281. | Take it away: Subtraction with decomposition 62-8 | |
| 282. | Write the missing number: 18 + ? + 2 = 30 | |
| 283. | Write the missing number: ? + 13 + 5 = 30 | |
| 284. | Write the missing number: 14 + 7 + ? = 30 | |
| 285. | Number detectives: ? + 23 = 30 | |
| 286. | Number detectives: ? + 18 = 30 | |
| 287. | Number detectives: 30 - 14 = ? | |
| 288. | Number detectives: 30 - ? = 15 | |
| 289. | Number detectives: 30 - ? = 13 | |
| 290. | Use the pattern: 9-5, 90-50, 900-500 | |
| 291. | Use the pattern: 8-5, 80-50, 800-500 | |
| 292. | Use the pattern: 6-2, 60-20, 600-200 | |
| 293. | Use the pattern: 9-8, 90-80, 900-800 | |
| 294. | Use the pattern: 5-3, 50-30, 500-300 | |
| 295. | Use the pattern: 8-2, 80-20, 800-200 | |
| 296. | Subtract.chains 48 - 7 - 2 - 9, 35 - 4 - 3 - 8 | |
| 297. | Subtract.chains 47 - 4 - 3 - 7, 28 - 8 - 2 - 5 | |
| 298. | Subtract.chains 23 - 4 - 1 - 3, 36 - 5 - 2 - 6 | |
| 299. | Subtract.chains 32 - 4 - 7 - 4, 45 - 2 - 10 - 5 | |
| 300. | Subtract.chains 28 - 5 - 2 - 10, 50 - 5 - 3 - 2 | |
| 301. | Take it away: Subtraction with decomposition 24 - 18 | |
| 302. | Number Detectives: ? - 15 = 10 | |
| 303. | Number Detectives: ? - 9 = 21 | |
| 304. | Number Detectives: 30 - 17 = ? | |
| 305. | Number Detectives: 30 - 14 = ? | |
| 306. | Number Detectives: 30 - ? = 12 | |
| 307. | Number Detectives: 40 - ? = 29 | |
| 308. | Take Ten 42 - 10 | |
| 309. | Subtract 2, 12 from 100 | |
| 310. | Subtract 3, 13 from 100 | |
| 311. | Subtract 5, 15 from 100 | |
| 312. | Subtract 7, 17 from 100 | |
| 313. | Subtract 8, 18 from 100 | |
| 314. | Subtract 4, 14 from 100 | |
| 315. | Subtraction chains 80-6-5-3, 70-4-2-5 | |
| 316. | Subtraction chains 30-9-2-5, 60-5-4-3 | |
| 317. | Subtraction chains 40-5-6-3, 50-9-2-8 | |
| 318. | Subtraction chains 90-3-5-3, 40-2-8-5 | |
| 319. | Subtraction chains 60-9-2-3, 50-3-6-10 | |
| 320. | Write the missing number: 25 + 3 + ? = 35 | |
| 321. | Write the missing number: 25 + 4 + ? = 35 | |
| 322. | Write the missing number: 25 + 2 + ? = 35 | |
| 323. | True or False: 100 - 47 = 33 | |
| 324. | Use the Pattern: 7-3, 37-3, 167-3=? | |
| 325. | Use the Pattern: 9-5, 29-5, 249-5=? | |
| 326. | Use the Pattern: 6-3, 36-3, 166-3=? | |
| 327. | Use the Pattern: 8-1, 18-1, 128-1=? | |
| 328. | Use the Pattern: 6-4, 46-4, 286-4=? | |
| 329. | Subtracting tens: 88 - ? = 48 | |
| 330. | Subtracting tens: 57 - ? = 27 | |
| 331. | Subtracting tens: 44 - ? = 24 | |
| 332. | Subtracting tens 55 - 20 = ? | |
| 333. | Subtracting tens 48 - 20 = ? | |
| 334. | Subtracting tens 72 - 30 = ? | |
| 335. | Subtracting tens 87 - 60 = ? | |
| 336. | Subtracting tens 91 - 60 = ? | |
| 337. | The Mysteries of 40!: 40-?=31, 40-?=33, 40-?=30 | |
| 338. | The Mysteries of 40!: 40-?=51, 40-?=38, 40-?=32 | |
| 339. | The Mysteries of 40!: 40-?=32, 40-?=29, 40-?=37 | |
| 340. | The Mysteries of 40!: 40-?=29, 40-?=38, 40-?=39 | |
| 341. | The Mysteries of 40!: 40-?=30, 40-?=33, 40-?=36 | |
| 342. | The Mysteries of 40!: 40-?=29, 40-?=31, 40-?=33 | |
| 343. | The Mysteries of 40!: 40-?=28, 40-?=32, 40-?=18 | |
| 344. | The Mysteries of 30!: 30-?=26, 30-?=23, 30-?=27 | |
| 345. | The Mysteries of 30!: 30-?=23, 30-?=13, 30-?=3 | |
| 346. | The Mysteries of 30!: 30-?=18, 30-?=15, 30-?=12 | |
| 347. | The Mysteries of 30!: 30-?=14, 30-?=19, 30-?=9 | |
| 348. | Subtraction chains: 30-4-10-8, 30-5-10-7 | |
| 349. | Subtraction chains: 30-4-16-8, 30-5-3-11 | |
| 350. | Subtraction chains: 30-8-6-12, 30-6-3-5 | |
| 351. | Subtraction chains: 30-3-4-13, 30-6-5-7 | |
| 352. | Subtraction chains: 30-10-9-4, 30-5-9-7 | |
| 353. | Changeover: 7 less than 301 | |
| 354. | Changeover: 6 less than 904 | |
| 355. | Changeover: 6 less than 503 | |
| 356. | Changeover: 7 less than 204 | |
| 357. | Changeover: 8 less than 305 | |
| 358. | Take it away: Subtraction with decomposition 53 - 28 | |
| 359. | Take it away: Subtraction with decomposition 61 - 13 | |
| 360. | Take it away: Subtraction with decomposition 25 - 16 | |
| 361. | Take it away: Subtraction with decomposition 33 - 18 | |
| 362. | Take it away: Subtraction with decomposition 46 - 27 | |
| 363. | Same or Different: Answer 43 | |
| 364. | Same or Different: Answer 77 | |
| 365. | Same or Different: Answer 69 | |
| 366. | The Mysteries of 40! 40-14,23,19 | |
| 367. | The Mysteries of 40! 40-8,12,25 | |
| 368. | The Mysteries of 40! 40-20,15,9 | |
| 369. | Build A Total - number sequence, 24 | |
| 370. | Patterns - Which operation? 95*5=100 | |
| 371. | Which Operation? - 60*4 = 56 | |
| 372. | Sign Scramble - complete 2 number sentences using given numbers | |
| 373. | Build A Total - number sequence, 24 | |
| 374. | Build a Total - number sequence, 15 | |
| 375. | Crossing 100: Add 70 to 60 | |
| 376. | Crossing 100: Add 60 to 80 | |
| 377. | Crossing 100: Add 90 to 40 | |
| 378. | Crossing 100: Add 50 to 90 | |
| 379. | Crossing 100: Add 50 to 70 | |
| 380. | The Chicken Story: twenty-four + thirty-two | |
| 381. | Takeout board: 17-? = 11 | |
| 382. | Takeout board: 15-? = 11 | |
| 383. | Takeout board: 18-? = 12 | |
| 384. | Takeout board: 16-? = 13 | |
| 385. | Takeout board: 19-? = 14 | |
| 386. | Subtracting Tens: 98 - 50 | |
| 387. | Subtracting Tens: 32 - 20 | |
| 388. | Subtracting Tens: 59 - 40 | |
| 389. | Subtracting Tens: 87 - 20 | |
| 390. | Subtracting Tens: 72 - 40 | |
| 391. | Subtracting tens: 40 - 30 = ? | |
| 392. | Subtracting tens: 70 - 40 = ? | |
| 393. | Subtracting tens: 70 - 10 = ? | |
| 394. | Subtracting tens: 80 - 40 = ? | |
| 395. | Subtracting tens: 50 - 20 = ? | |
| 396. | Subtracting tens: 40 - 30 = ? | |
| 397. | Subtracting Tens: 68 - 30 | |
| 398. | Subtracting Tens: 44 - 20 | |
| 399. | Takeout board 18-12 | |
| 400. | Takeout board 77-34 | |
| 401. | Takeout board 45-21 | |
| 402. | Takeout board 29-15 | |
| 403. | Takeout board 87-53 | |
| 404. | Takeout board: 48-26 | |
| 405. | Takeout board: 65-34 | |
| 406. | Takeout board: 6? - 12 = 55 | |
| 407. | Takeout Board 79-?8=61 | |
| 408. | Takeout Board 67-1?=53 | |
| 409. | Takeout Board ?9-18=71 | |
| 410. | Takeout Board ?7-17=50 | |
| 411. | Takeout Board ?3-21=72 | |
| 412. | Takeout board 152-? = 144 | |
| 413. | Takeout board 547-? = 538 | |
| 414. | Takeout board 553-? = 546 | |
| 415. | Takeout board 742-? = 737 | |
| 416. | Takeout board 291-? 285 | |
| 417. | Takeout board: 2? - 13 = 13 | |
| 418. | Takeout board: 4? - 22 = 27 | |
| 419. | Takeout board: 3? - 14 = 23 | |
| 420. | Takeout board: 5? - 26 = 32 | |
| 421. | Hundreds takeout 875-**=865 | |
| 422. | Hundreds takeout 350-**=330 | |
| 423. | Adding Hundreds: 100+280 | |
| 424. | Adding Hundreds: 200+43 | |
| 425. | Number Quest - find 1 number to complete 2 number sentences | |
| 426. | Number Quest - find 1 number to complete 2 number sentences | |
| 427. | Number Quest - find 1 number to complete 2 number sentences | |
| 428. | Number Quest - complete number sentence | |
| 429. | Number Quest - complete number sentence |