50以内数的认识课件.ppt

认识50以内的数,1,2,我会数数,1、从36数到43,37,38,39,40,3,我会数数,1、从36数到43,36,37,38,39,40,4,我会数数,1、从36数到43,41,42,43,36 37 38 39 40,5,我会数数,2、从43数到52,44,45,46,47,48,49,50,43,6,我会数数,2、从43数到50,43 44 45 46 47 48 49 50,7,我会数数,3、从36倒数到27,34,33,32,31,30,35,36,8,我会数数,3、从36倒数到27,36 35 34 33 32 31 30,9,我会数数,3、从36倒数到27,29,28,27,36 35 34 33 32 31 30,10,35、36、37、38、39、40、41、42,从三十五数到四十二。,11,接力游戏：请你说出小猴子卡片上的数的下一个整十数。,50,60,20,70,40,80,10,下一页,30,12,39添上1是（），,9添上1是_，29添上1是_，49添上1是_。,40,10,30,50,三十九添上1是多少？四十九、五十九添上1呢？,13,30,31,35,36,29 32 33,36,35,17,34,37,40,1.,2.,3.,填数,14,15,16,挑战魔术框！,28,36,18,22,24,13,33,25,27,45,47,17,谢谢！,18,