文档介绍：三年级上册数学-(二)一、,一年级女同学做好事18件,男同学做好事24件,其余是二年级同学做的,二年级同学共做好事(  )A. 54件                                    B. 64件                                    C. 88件                                    D. (  )。A. 29+16                                      B. 79-35                                      C. 98-,拿掉9根,还剩下(   )根A. 3                                              B. 4                                              C. ,摘下15个,还剩(  )个。A. 14                                            B. 15                                            C. ,结果为350的是()。A. 900和750                               B. 650和和300                               C. (     )。A. 29+30                                     B. 13+26                                     C. 28+( )A. 45+4                                      B. 35+9                                      C. 65-,另一个加数是27,和是( )A. 87                                         B. 34                                         C. 33                                         D. +22-10=A. 57                                            B. 75                                            C. ,一个小西瓜9元,小西瓜比大西瓜便宜(  )元A. 10                                            B. 14                                            C. 15二、判断题11.“7-5=”,