课件24张PPT。9加几4 1 3 5 1 4 10 1 9 3 1 2 10+ =110+ =1 +10=13355889+4+1=147+5+3=158+2+6=169128371010109 + 4 =1013 一共有多少个桃子?9 + 4 =9 + 4 =10139+5=149+4=139+2=119+3=129+6=159+5=149+4=139+2=119+3=129+6=159+5=149+4=139+2=119+3=129+6=159+7=169+8=179+9=1823456少1123459+9+9+9+9+9+9+9+( )=12( )+9=149+( )=( )359 + 8 =10179 + 8 =1017你有哪些收获?