青岛版二年级数学口算练习320
2020-09-02
来源：步旅网
320 - 287 = 329 + 240 = 342 - 231 = 265 + 285 = 350 + 378 = 316 + 331 = 359 - 208 = 388 - 356 = 282 - 210 = 273 - 249 = 209 + 236 = 245 + 263 = 235 + 275 = 213 + 265 = 314 - 251 = 294 + 309 = 309 + 395 = 265 + 322 = 399 + 236 = 323 - 268 =