人教版二年级数学两位数加两位数
36页1、课前复习,32+20= 16 +8 = 44+5 = 20+30= 31+10= 52+6 = 15+9 = 23+5 = 61+7 = 50+20=,32+20= 52 16 +8 = 44+5 = 20+30= 31+10= 52+6 = 15+9 = 23+5 = 61+7 = 50+20=,32+20= 52 16 +8 =24 44+5 = 20+30= 31+10= 52+6 = 15+9 = 23+5 = 61+7 = 50+20=,32+20= 52 16 +8 =24 44+5 =49 20+30= 31+10= 52+6 = 15+9 = 23+5 = 61+7 = 50+20=,32+20= 52 16 +8 =24 44+5 = 49 20+30=50 31+10= 52+6 = 15+9 = 23+5 = 61+7 = 50+20=,32+20= 52 16 +8 =24 44+5 = 49 20+30=50 31+10= 41 52+6 = 15+9 = 23+5 = 61+7 = 50+20=,32+20= 52 16 +8 =24 44+5 = 49 2
2、0+30=50 31+10= 41 52+6 =58 15+9 = 23+5 = 61+7 = 50+20=,32+20= 52 16 +8 =24 44+5 = 49 20+30=50 31+10= 41 52+6 =58 15+9 = 24 23+5 = 61+7 = 50+20=,32+20= 52 16 +8 =24 44+5 = 49 20+30=50 31+10= 41 52+6 =58 15+9 = 24 23+5 =28 61+7 = 50+20=,32+20= 52 16 +8 =24 44+5 = 49 20+30=50 31+10= 41 52+6 =58 15+9 = 24 23+5 =28 61+7 = 68 50+20=,32+20= 52 16 +8 =24 44+5 = 49 20+30=50 31+10= 41 52+6 =58 15+9 = 24 23+5 =28 61+7 = 68 50+20=70,100以内的加法和减法(二),1.两位数加两位数 不进位加法,1.能正确的列竖式计算两位数加两位数(不进位)。 2.理解两位数加两位数的算理。,教学目
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