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,*,口算高速路,50+70=300+600=,800-400=3000-1000=,30+40=600+500=,1600-900=1500+1000=,3500-500=180-90=,120,400,70,700,3000,900,2000,1100,2500,90,两位数加减两位数,第九小学 张丽芳,会正确计算两位数加,减两位数,二（,1,）班、二（,2,）班能坐下吗？,二（,3,）班、二（,4,）班合乘能坐下吗？,38,63,80,93,23,15,36,27,48,32,64,29,还能上几人？,二（,3,）班上一些人后，还剩多少人？,53,15,24,42,76,23,39,24,98,74,60,18,32,40,54,30,36,20,52,10,32,46,54,38,32,24,52,18,72,84,16,42,78,92,8,34,31,74,81,73,23,25,50,38,54-23,48+25,19+62,86-12,37+13,61-38,70-45,我第一天采了,34,朵花，第二天采了,27,朵花,我第一天采了,21,朵花，第二天采了,29,朵花,谢谢莅临指导！,