青岛版二年级数学下口算练习(共4页).doc

精选优质文档-倾情为你奉上372 - 212 = 204 + 342 = 224 + 270 = 369 + 358 = 257 + 241 = 346 + 383 = 311 - 276 = 256 + 227 = 364 - 254 = 275 - 264 = 353 - 276 = 223 - 207 = 227 + 351 = 385 - 292 = 262 + 330 = 388 + 334 = 346 - 224 = 363 + 382 = 278 + 388 = 342 + 343 = 333 - 257 = 203 + 247 = 257 + 224 = 377 - 257 = 222 + 297 = 277 - 231 = 297 + 380 = 254 + 203 = 338 + 227 = 383 + 255 = 361 - 213 = 251 + 327 = 378 - 270 =