9﹢7=(16 )
16 10
想:9加( 1 )凑成10.
7可以分成(1)和(6).
10加6等于( 16 ).
9﹢8=( 17 )
17 10
想:9加( 1 )凑成10. 8可以分成(1)和(7).
10加7等于( 17 ).
9﹢9=( 18 )
18 10
想:9加( 1 )凑成10. 9可以分成(1)和(8). 10加8等于( 18 ).
• 13、志不立,天下无可成之事。2020/7/272020/7/272020/7/272020/7/277/27/2020
• 14、Thank you very much for taking me with you on that splendid outing to London. It was the first time that I had seen the Tower or any of the other famous sights. If I'd gone alone, I couldn't have seen nearly as much, because I wouldn't have known my way about.
9+5=(14)
9+7=(16)
9+9=(18)
你能有顺序地说一说吗?
9 + =1
9+1= 10 9+2= 11 9+3= 12 9+4= 13 9+5= 14 9+6= 15 9+7= 16 9+8= 17 9+9= 18
多1 少1
9+5=14 加数 个位
9+1= 10 9+2= 11 9+3= 12 9+4= 13 9+5= 14 9+6= 15 9+7= 16 9+8= 17 9+9= 18