9加几,人教版数学第一册,10+1= 10+2= 10+3= 9+1+1= 9+1+2= 9+1+3=10+5= 10+7= 10+8= 9+1+5= 9+1+7= 9+1+8=,11,11,12,12,13,13,15,15,17,17,18,18,2 3 4 5 6 7 8 91 1 1 1 1 1 1 1,1,2,3,4,5,6,7,8,9+（ ）=10 9+1+1=（ ）,1,11,9 + 3 = ,1,2,12,9+3=,1,9+7=,16,1,6,10,10,9+4=13,1,10,3,9+8=17,10,1,7,9+5=,9+6=,9+9=,10,10,10,1,4,1,5,1,8,14,15,18,9+1+3= 9+4=,9+1+5= 9+6=,9+1= 9+2= 9+3=,9+4= 9+5= 9+6=,9+7= 9+8= 9+9=,13,13,15,15,1、,2、,10,11,12,13,14,15,16,17,18,
