人教版小学三年级数学下册练习十课件.ppt
最新人教版三年级数学下册,笔算乘法(不进位),练习十,6,6,2,2,6,8,2,286,2.列竖式计算。,1244 =,3213 =,1 2,4 4,8,4,8,4,8,2,5,528,416,3 2,1 3,6,9,2,3,6,1,4,2.列竖式计算。,4211 =,2123 =,4 2,1 1,2,4,2,4,2,6,4,462,483,2 1,2 3,3,6,2,4,3,8,4,2 2,4 3,6,6,8,8,6,4,9,改正:,3 1,1 3,3,9,1,3,3,0,4,改正:,1212 =,144 (个),答:一共144个。,2214 =,308 (页),308 300,(2)407 =,280 (页),答:每天读22页,2周能读完;每天读40页,7天不能读完。,(1)27 =,14 (天),300 280,6.列竖式计算。,1232 =,4121 =,1 2,3 2,4,2,6,3,4,8,3,384,861,4 1,2 1,1,4,2,8,1,6,8,6.列竖式计算。,2223 =,1313 =,2 2,2 3,6,6,4,4,6,0,5,506,169,1 3,1 3,9,3,3,1,9,6,1,2114 =,294(元),答:一共要付294元。,(1)大米和面粉各买了多少千克?,(2)用载重1吨的货车一次能运回来吗?,1吨 955千克,大米:2511 =,275(千克),面粉:3420 =,680(千克),答:大米买了275千克,面粉买了680千克。,275+680 = 955 (千克),答:用载重1吨的货车一次能运回来。,(3)1袋大米80元,1千克面粉7元。你能提出数学问题并解答吗?,食堂买大米一共用多少钱?,8011 =,880 (元),答:食堂买大米一共用880元。,341,352,363,374,385,451,462,473,484,495,550,561,572,583,594,今天的这些练习题,你都会做了吗?,