一年级数学下册摘苹果.ppt
复习,30+20=9+50=58-20=30+30=40+20=80-40=20+15=18+30=70-30=,50,59,38,60,60,40,35,48,40,装60个,装60个,38,17,55,8412,201232,38240,401555,301040,38,17,55,3 8,1 7,1,个位,十位,5,5,55,3724,算一算，说一说。,4654,33,53,45,65,42,62,20,20,3 6,2 9,5,5,6,4.森林医生。,2 5,4 4,7,9,4,3 7,7,7,1,6,4 1,1,你学到了什么？,
