三位数加减一位数yuan

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,三位数加减一位数yuan,这两组题包你会算吗？,47+5=,57+5=,67+5=,77+5=,95-6=,94-6=,93-6=,92-6=,52,62,72,82,89,88,87,86,这两组题包你会算吗？,47+5=,57+5=,67+5=,477+5=,？,95-6=,94-6=,93-6=,792-6=,？,52,62,72,89,88,87,探究一,77+5=82,77 82,+5,477+5=,477 ,+5,482,482,探究一,探究二,探究三,探究四,探究二,92-6=86,86 92,-6,792-6=, 792,-6,786,786,探究一,探究二,探究三,探究四,探究三,794+9=,？,这题可以怎样想呢？,794,+6,800,（ ）,+3,803,803,794+6=800,800+3=803,探究一,探究二,探究三,探究四,探究四,903-7=,？,你会用算线计算吗？,903,-3,900,903-3=900,-4,（ ）,900-4=896,896,896,探究一,探究二,探究三,探究四,练习一,仔细观察算式,你发现什么小秘密?,24+3=,324+3=,724+3=,65-8=,165-8=,765-8=,56+9=,256+9=,856+9=,27,327,727,65,265,865,57,157,757,练习一,练习二,练习三,练习四,练习二,+6,+8,-3,-9,+7,-5,523,623,343,543,464,664,236,436,498,598,903,803,529,629,351,551,461,661,227,427,505,605,898,798,练习一,练习二,练习三,练习四,练习三 看谁跑得快,-8,673,681,+5,676,682,-6,+4,678,-7,625,632,+8,624,633,-9,+6,627,+8,815,807,-3,810,804,+6,-9,813,-7,348,355,-8,363,359,+4,-5,364,练习一,练习二,练习三,练习四,练习四 把信送到哪里?,381- =376,295+ =303,364+ =373,554- =547,5,9,8,7,练习一,练习二,练习三,练习四,1,2,3,4,