人教版三年级数学下册笔算乘法练习课.ppt

笔算乘法练习,做一做：,2.,3,4,4,1,4,3,6,3,4,9,3,1,1,2,2,7,4,8,8,4,5,8,2,6,1,1,4,4,5,9,6,9,0,2,6,9,5,3,2,2,1394,1628,2596,2.,1,5,2,1,5,1,0,3,5,1,3,5,3,2,7,1,7,6,0,1,3,4,3,1,1,8,6,1,3,8,4,6,8,8,0,1,2,1,315,1431,1108,我们想组织500名同看电影，坐得下吗？,共有21排座位，每排可坐26人。,（1）买书包花多少元？,（2）买铅笔盒花多少元？,（3）一共花多少元？,买了12个书包和15个铅笔盒。,3.,我每天训练要骑75千米,这位自行车运动员一个月（31）天，要骑多少千米？,7531=2325（千米）答：要骑2325千米。,4.,每行有35棵。,一共有多少棵橘子树？,2635=910（棵）答：一共有910棵橘子树。,5.,3782=,6531=,5964=,3943=,3,7,8,2,6,5,3,1,5,9,6,4,3,9,4,3,4,7,6,9,4,3,0,5,6,5,9,5,1,0,6,3,4,5,6,7,7,7,1,6,5,7,7,6,3034,2015,3776,1677,2,3,1,2,2,3,3,1,1,1,5.,7618=,4536=,8946=,3821=,7,6,1,8,4,5,3,6,8,9,4,6,3,8,2,1,8,0,6,7,8,6,3,0,7,5,3,0,2,6,4,3,6,5,4,9,0,8,3,6,7,8,9,7,1368,1620,4094,798,6,1,2,1,1,5,3,4,6.,7.,每桶水约重19千克，我每天送25桶水。,他每天约送多少千克水？,1925=475（千克）答：他每天约送475千克水。,8.,每套12张，售价14元。,今天卖出56套风光明信片。,一共卖了多少钱？,1456=784（元）答：一共卖了784元。,