Know the basic addition and subtraction facts

Know the basic addition and subtraction facts

1. 2 less, 2 more than 28
2. 2 less, 2 more than 15
3. 2 less, 2 more than 23
4. 2 less, 2 more than 13
5. 2 less, 2 more than 38
6. 2 less, 2 more than 21
7. 2 less, 2 more than 47
8. 2 less, 2 more than 63
9. 2 less, 2 more than 74
10. 2 less, 2 more than 30
11. Changing Numbers: 10 to 15
12. Going Shopping: $3 + $2 = $?
13. Katherine Goes Shopping: $1 + $3
14. Eduardo Goes Shopping: $3 + $4
15. Add these 3 numbers: 3+4+3
16. Add these 3 numbers: 2+4+1
17. Add these 3 numbers: 3+2+1
18. Add these 3 numbers: 7+1+1
19. Add these 3 numbers: 1+1+2
20. Add these 3 numbers: 5+2+1
21. Number Detectives ? + 3 = 6
22. Team Effort: $12 + $7
23. True or False: 3+4=7
24. True or False: 6+2=8
25. True or False: 6+3=10
26. True or False: 5+2=8
27. True or False: 1+4=6
28. True or False: 6+1=7
29. True or False: 3+3=9
30. True or False: 4+4=8
31. True or False: 4+2=7
32. True or False: 5+1=6
33. True or False: 2+4=0
34. True or False: 3+1=1
35. True or False: 2+5=3
36. True or False: 1+0=1
37. True or False: 5+4=10
38. Add these three numbers: 4+2+3
39. Number Detectives: ? + 5 = 11
40. True or False? 3+4 = 7
41. True or False? 8+1 = 10
42. True or False? 7+2 = 9
43. True or False? 6+2 = 8
44. True or False? 2+1 = 4
45. True or False? 6+1 = 5
46. True or False? 5+4 = 8
47. True or False? 5+4 = 9
48. True or False? 9+0 = 9
49. True or False? 7+2 = 9
50. True or False? 3+6 = 10
51. True or False? 8+2 = 10
52. True or False? 4+4 = 8
53. True or False? 3+5 = 7
54. True or False? 2+8 = 8+2
55. Number Detectives: 9 + 5 = ?
56. Number Detectives: 6 + ? = 9
57. Word Wise: The sum of 10 and 4
58. Word Wise: Add 5 to 7
59. Word Wise: 5 more than 4
60. Word Wise: 7 plus 6
61. Word Wise: 5 more than 8
62. Use the Pattern: 4+3, +4, +5
63. Add these 3 numbers: 5+5+1
64. Add these 3 numbers: 8 + 3 + 2
65. Add these 3 numbers: 9 + 1 + 6
66. Add these 3 numbers: 4 + 4 + 3
67. Add these 3 numbers: 6+4+5
68. Number Detectives: ?+5 = 15
69. Addition Chain: 5 + 3 = ? + 3 = ?
70. Addition Chain: 6 + 4 = ? + 5 = ?
71. Addition Chain: 2 + 4 = ? + 5 = ?
72. Addition Chain: 3 + 9 = ? + 1 = ?
73. Addition Chain: 4 + 3 = ? + 5 = ?
74. Number Detectives: 9 + ? = 15
75. Number Detectives: 8 + ? = 15
76. Use the Pattern: 4+0, +10, +20
77. Use the Pattern: 5+0, +10, +20
78. Use the Pattern: 7+0, +10, +20
79. Use the Pattern: 6+0, +10, +20
80. Use the Pattern: 3+0, +10, +20
81. Use the Pattern: 9+0, +10, +20
82. Going Shopping - $10 + $3
83. Is the answer...?: Click all boxes with answer 8.
84. 11 + 6 = 17: So what else is true?
85. Changing Numbers: 17 to 21
86. Changing Numbers: 10 to 21
87. Changing Numbers: 7 to 11
88. Changing Numbers: 8 to 13
89. Changing Numbers: 9 to 12
90. Changing Numbers: 17 to 21
91. Changing Numbers: 18 to 21
92. True or False?: 10+7=17, 15+2=17, 17=10+7, 17+0=17
93. Who's going to Waterworld? 5+4+3+2
94. Card Tricks: Red 5 + Black 4
95. True or False?: 9 + 9 = 18
96. True or False?: 10 + 5 = 5 + 10
97. True or False?: 6 + 7 = 14
98. True or False?: 7 + 7 = 15
99. True or False?: 8 + 6 = 86
100. True or False?: 6 + 6 = 13
101. Number Detectives: 10 + 27 = ?
102. Use the Pattern: 5+4,15+4,25+4
103. Use the Pattern: 6+4,16+4,26+4
104. Use the Pattern: 10+2,20+2,30+2
105. 11+6=17: So what else is true?
106. 21+5=26: So what else is true?
107. 15+12=27: So what else is true?
108. Same or different? Click all boxes with answer 18
109. Same or Different? Click all boxes with answer 20
110. Same or Different? Click all boxes with answer 16
111. Make 19: 8+6+?
112. Make 18: 4+11+?
113. Make 20: 9+11+?
114. Make 20: 9+6+?
115. Number detectives: Mysteries of 15
116. Number detectives: Mysteries of 16
117. Number detectives: Mysteries of 13
118. Number detectives: Mysteries of 17
119. Number detectives: Mysteries of 14
120. Addition Chains
121. Addition Chains
122. Addition Chains
123. Addition Chains
124. Add three numbers: 7 + 9 + 3
125. True or False?: 18 + 2 = 20
126. True or False?: 7 + 8 = 15
127. N/D Mysteries of 20! 17+, 11+, 15+
128. N/D Mysteries of 20! 7+, 10+, 8+
129. N/D Mysteries of 20! 6+, 9+, 3+
130. N/D Mysteries of 20! 20+, 5+, 2+
131. Use the Pattern: 4 + 9, + 10, + 11
132. Use the Pattern: 5 + 9, + 10, + 11
133. Use the Pattern: 6 + 9, + 10, + 11
134. Use the Pattern: 7 + 9, + 10, + 11
135. Use the Pattern: 8 + 9, + 10, + 11
136. Changing numbers: 13 changes to 21
137. Changing numbers: 9 changes to 17
138. Changing numbers: 8 changes to 17
139. True or False?: 8 + 8 = 16
140. True or False?: 15 + 5 = 20
141. True or False?: 7 + 9 = 16
142. True or False?: 13 + 1 = 1 + 13
143. True or False?: 16 + 4 = 20
144. Addition Chains: 10 + 4 + 6 + 2, 11 + 2 + 3 + 4
145. Addition Chains: 4 + 5 + 5 + 2, 10 + 5 + 5 + 10
146. Addition Chains: 2 + 4 + 3 + 10, 12 + 1 + 2 + 7
147. Addition Chains: 4 + 5 + 6 + 8, 11 + 4 + 3+ 7
148. Addition Chains: 3 + 2 + 4 + 2, 7 + 2 + 3 + 4
149. Addition Chains: 3 + 2 + 4 + 8, 4 + 3 + 7 + 4
150. True or False: 10+9=19
151. True or False: 9+6=15
152. 36 + 12 = 48 So what else is true?
153. Same or different:19-12,2+5,3+4,33-26,16-8
154. Happy Landings 5 minus 3
155. Frog swamp: 8 - 5 = ?
156. Frog swamp: 8 - 7 = ?
157. Frog swamp: 8 - 6 = ?
158. Frog swamp: 8 - 4 = ?
159. Frog swamp: 8 - 8 = ?
160. Happy Landings 9 minus 6
161. Subtraction chain 8 - 4 = 4, 4 - 2 = ?
162. Subtraction chain 7 - 2 = 5, 5 - 2 = ?
163. Subtraction chain 9 - 3 = 6, 6 - 2 = ?
164. Subtraction chain 6 - 3 = 3, 3 - 1 = ?
165. Subtraction chain 8 - 2 = 6, 6 - 1 = ?
166. Spot the difference between 3 and 5
167. Spot the difference between 4 and 4
168. Spot the difference between 4 and 6
169. Spot the difference between 4 and 7
170. Spot the difference between 2 and 8
171. Ball skills: How many more to make 10? 7+2+?
172. Ball skills: How many more to make 10? 6+3+?
173. Ball skills: How many more to make 10? 5+3+?
174. Ball skills: How many more to make 10? 7+1+?
175. Ball skills: How many more to make 10? 2+3+?
176. Happy Landings 8 minus 5
177. Happy Landings 8 Take away 4
178. True or False? 12-7=6
179. True or False? 13-7=6
180. True or False? 16-9=10
181. True or False? 15-8=7
182. True or False? 12-6=5
183. Subtraction chain 9 - 1 = 8, 8 - 2 = ?
184. Subtraction chain 8 - 3 = 5, 5 - 2 = ?
185. Subtraction chain 6 - 2 = 4, 4 - 2 = ?
186. Subtraction chain 7 - 3 = 4, 4 - 1 = ?
187. Subtraction chain 9 - 2 = 7, 7 - 3 = ?
188. Spot the difference between 4 and 5
189. Spot the difference between 3 and 5
190. Spot the difference between 2 and 6
191. Spot the difference between 5 and 7
192. Spot the difference between 2 and 7
193. Hide and Seek: 7 trolls - 5
194. Hide and Seek: 7 trolls - 4
195. Hide and Seek: 6 trolls - 4
196. Hide and Seek: 8 trolls - 4
197. Number detectives: ? - 5 = 10
198. Number detectives: ? - 6 = 3
199. Number detectives: ? - 7 = 2
200. Number detectives: ? - 7 = 6
201. Number detectives: ? - 8 = 4
202. Number detectives: 14 - 6 = ?
203. Number detectives: 15 - 9 = ?
204. Number detectives: 11 - 8 = ?
205. Number detectives: 13 - 5 = ?
206. Number detectives: 15 - 13 = ?
207. Number detectives: 14 - ? = 4
208. Number detectives: 11 - ? = 5
209. Number detectives: 10 - ? = 8
210. Number detectives: 13 - ? = 5
211. Number detectives: 14 - ? = 7
212. Find the first number: ? count on 5 = 8
213. Find the first number: ? count on 1 = 8
214. Find the first number: ? count on 2 = 8
215. Find the first number: ? count back 1 = 8
216. Find the first number: ? count back 2 = 8
217. Find the first number: ? count back 3 = 8
218. Find the first number: ? count back 4 = 8
219. Find the first number: ? count on 3 = 8
220. Find the first number: ? count on 4 = 8
221. Card games: Which is lower, 4 + 2 or 6 + 1?
222. Card games: Which is lower, 7 + 3 or 5 + 4?
223. Card games: Which is lower, 6 + 4 or 2 + 3?
224. Card games: Which is lower, 4 + 3 or 1 + 9?
225. Card games: Which is higher, 4 + 5 or 5 + 1?
226. Number detectives ? -3 = 11
227. Number detectives 18 -10 = ?
228. Number detectives 17 -? = 5
229. Word Wise: 14 take away 6
230. Word Wise: 6 less than 12
231. Word Wise: 11 less than 16
232. Use the pattern: 8 - 4, - 3, - 2
233. Use the pattern: 6 - 6, - 5, - 4
234. Slippery fish 9 - 9 = ?
235. Slippery fish 10 - 9 = ?
236. Changing numbers: 18 to 9
237. Changing numbers: 16 to 12
238. Changing numbers: 12 to 7
239. Changing numbers: 20 to 9
240. Changing numbers: 14 to 9
241. True or False? 20-10=10
242. True or False? 20-20=0
243. True or False? 20-1=19
244. True or False? 15-5=10
245. True or False? 15-0=15
246. True or False? 15-9=5
247. True or False? 10-5=15
248. True or False? 10-10=0
249. True or False? 10-1=9
250. True or False? 10-5=5
251. True or False? 12-6=6
252. True or False? 12-5=7
253. True or False? 12-12=0
254. True or False? 12-10=0
255. True or False? 18-9=0
256. True or False? 18-18=0
257. True or False? 18-8=10
258. Take 10: 40 - 10 = ?
259. Write the missing number: 8 + ? + 7 = 20
260. Write the missing number: 6 + ? + 8 = 20
261. Write the missing number: ? + 9 + 6 = 20
262. Write the missing number: 2 + 11 = ? = 20
263. Write the missing number: ? + 7 + 9 = 20
264. Subtraction chain 20 - 3 = 17, 17 - 3 = ?
265. Subtraction chain 20 - 6 = 14, 14 - 5 = ?
266. Subtraction chain 20 - 5 = 15, 15 - 2 = ?
267. Subtraction chain 20 - 12 = ? - 6 = 2
268. Subtraction chain 20 - 9 = 11, 11 - 3 = ?
269. Word Wise!: 12 minus 7
270. Takeaway board: 17-?=11
271. Takeaway board: 15-?=11
272. Takeaway board: 18-? = 12
273. Takeaway board: 16-? = 13
274. Takeaway board: 19-? = 14
275. Hide and seek: 10 trolls - 5
276. Hide and seek: 14 trolls - 5
277. Hide and seek: 11 trolls - 5
278. 12 + 7 = 19 - so what else is true?
279. True or False?: 12 - 6 = 6
280. True or False?: 9 - 4 = 5
281. True or False?: 17 - 2 = 15
282. Subtraction Chain - 21-4 =?-1= 16
283. Subtraction Chain - 29-8=21-3=?
284. Subtraction Chain - 26-5=21-4=?
285. Taking ten: 46-10
286. Taking ten: 72-10
287. Taking ten: 39-10
288. Taking ten: 55-10
289. Taking ten: 81-10
290. Subtract 8 (from 16, 15, 12)
291. Subtract 6 (from 12, 11, 13)
292. Subtract 5 (from 14, 11, 8)
293. Subtract 7 (from 14, 16, 11)
294. Subtract 4 (from 10, 12, 8)
295. True or False?: 16 - 8 = 8
296. True or False?: 16 - 9 = 7
297. True or False?: 19 - 13 = 6
298. Subtract 8 from 17, 13 & 11
299. Subtract 6 from 13, 15 & 11
300. Subtract 9 from 12, 15 & 17
301. Build A Total - number sequence, 15
302. Build A Total - number sequence, 24
303. Build A Total - number sequence, 11
304. What Comes Next? - 10 less than 12
305. What Comes Next? - 10 more than 13
306. What Comes Next? - 10 more than 12
307. Enid the Elephant's Equations - equivalent to 8 + 4
308. Enid the Elephant's Equations - equivalent to 6 + 5
309. Enid the Elephant's Equations - equivalent to 7 + 7
310. Number Quest - find 1 number to complete 2 number sentences
311. Sign Scramble - complete 2 number sentences using given numbers
312. Number Quest - find 1 number to complete 2 number sentences
313. Number Quest - find 1 number to complete 2 number sentences
314. Card games: 6 + 4 = ?, 2 + 3 = ?
315. Card games: 7 + 4 = ?, 9 + 8 = ?
316. Card games: 7 + 9 = ?, 8 + 3 = ?
317. Card games: 5 + 8 = ?, 7 + 9 = ?
318. Card games: 9 + 9 = ?, 8 + 6 = ?
319. At the Zoo: 4 + 3 + 4
320. Who's going to Waterworld? 2+4+3+8
321. Who's going to Waterworld? 4+4+2+5
322. Who's going to Waterworld? 2+3+3+10
323. Who's going to Waterworld? 7+3+2+3
324. Who's going to Waterworld? 5+4+5+3
325. Card games: Which is higher, 5 + 4 or 3 + 7?
326. Card games: Which is higher, 3 + 5 or 4 + 8?
327. Card games: Which is higher, 5 + 9 or 6 + 4?
328. Card games: Which is higher, 4 + 6 or 9 + 3?
329. Card games: Which is lower, 9 + 3 or 6 + 7?
330. Card games: Which is lower, 2 + 6 or 4 + 2?
331. Who's going to Waterworld? 2+4+3+3
332. Mary Goes Shopping: $5 + $1
333. Edward Goes Shopping: $4 + $2
334. Emma Goes Shopping: $3 + $2
335. Jean Goes Shopping: $5 + $3
336. Reuben Goes Shopping: $4 + $2
337. Rachelle Goes Shopping: $1 + $4
338. Joshua Goes Shopping: $3 + $1
339. Emma Goes Shopping: $3 + $2
340. Card Tricks: Red 4 + Black 9
341. Card Tricks: Red 3 + Black 7
342. Card Tricks: Red 6 + Black 5
343. Card Tricks: Red 9 + Black 6
344. Card Tricks: Red 8 + Black 7
345. Clinton Goes Shopping: $2 + $2