文档介绍：三年级上册数学单元测试-第二单元一、×4=(   )A. 520                                      B. 92                                      C. 3000                                      D. :00播放到18:40,( ). 7                                              B. 8                                              C. ÷4=(  )A. 7                                         B. 96                                         C. 120                                         D. ,商是(  )A. 两位数                          B. 三位数                          C. ×2=(   )A. 35                                      B. 440                                      C. 480                                      D. ×7=(  )A. 276                                      B. 266                                      C. 366                                      D. ÷3=(  )A. 3                                        B. 24                                        C. 40                                        D. ,9分钟浪费掉(   )克水A. 650                                      B. 65                                      C. 3900                                      D. (  )不是“36÷3”.       B. C. (12)×3=36 36÷3=(12)            .(1)408×5积的中间有(  ). 1                                           B. 2                                           C. 3