280以内加减法，链接后加“?x=300”可调整加大计算数值，最大300。点此切换答案显示，方便截图打印。
注：改变浏览窗口大小，可调整每行题数，本页默认会显示100道，刷新页面随机重排。黑海豚设计（交流QQ:6932391)
132 + 10 = 142
90 + 11 = 101
40 + 19 = 59
210 + 55 = 265
10 - 4 = 6
151 + 63 = 214
15 - 5 = 10
22 + 216 = 238
118 - 72 = 46
19 + 191 = 210
131 - 16 = 115
165 - 8 = 157
178 - 16 = 162
49 + 126 = 175
186 + 93 = 279
134 + 38 = 172
250 - 160 = 90
15 + 107 = 122
141 - 12 = 129
10 + 10 = 20
69 + 114 = 183
278 - 188 = 90
120 - 75 = 45
156 + 22 = 178
15 - 6 = 9
54 - 21 = 33
29 + 235 = 264
176 - 97 = 79
246 - 244 = 2
165 - 130 = 35
96 + 97 = 193
100 + 98 = 198
209 - 5 = 204
57 + 15 = 72
105 - 74 = 31
196 + 17 = 213
268 + 4 = 272
230 - 98 = 132
40 + 115 = 155
136 - 114 = 22
219 + 13 = 232
120 + 70 = 190
105 + 27 = 132
234 - 138 = 96
122 - 12 = 110
225 - 9 = 216
189 + 16 = 205
65 + 67 = 132
64 + 167 = 231
232 - 207 = 25
260 - 167 = 93
141 + 17 = 158
215 - 116 = 99
278 - 67 = 211
116 - 36 = 80
167 - 83 = 84
197 - 20 = 177
67 + 208 = 275
216 - 145 = 71
38 + 214 = 252
157 - 154 = 3
131 - 74 = 57
199 - 175 = 24
237 - 116 = 121
218 - 143 = 75
158 - 151 = 7
57 + 69 = 126
275 - 44 = 231
100 + 23 = 123
122 - 87 = 35
134 + 145 = 279
112 + 136 = 248
38 + 73 = 111
175 + 23 = 198
187 - 39 = 148
63 + 170 = 233
137 - 3 = 134
131 + 50 = 181
279 - 59 = 220
275 - 85 = 190
58 - 38 = 20
53 - 5 = 48
208 - 38 = 170
14 + 263 = 277
24 + 126 = 150
158 - 99 = 59
184 - 79 = 105
247 + 5 = 252
167 - 89 = 78
179 - 131 = 48
246 - 238 = 8
42 - 29 = 13
38 + 22 = 60
123 - 86 = 37
239 - 181 = 58
112 - 42 = 70
109 - 99 = 10
204 - 142 = 62
234 - 39 = 195
129 + 148 = 277