• 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.
822 相同数位9要对齐。
学以致用
3.
蝴蝶下面藏着几？
7
7
6
6
－5 3 ＋1 9以致用
3.
蝴蝶下面藏着几？
9
3
8
7
－1 2 ＋3 4
8
7
6
1
学以致用
4.大猴子摘了65个桃子，送了23个给小 猴子后，大猴子还剩下几个桃子？
65－23=42（个）
课堂小结
你学会了哪 些知识？
笔算减法也 从个位算起。
竖式计算两位数减两位数(不退位减), 先把相同数位对齐,再把相同数位上的数 相减。个位相减所得的数写在得数的个 位上,十位相减所得的数写在得数的十位 上。
• 9、春去春又回，新桃换旧符。在那桃花盛开的地方，在这醉人芬芳的季节，愿你生活像春天一样阳光，心情像桃花一样美丽，日子像桃子一样甜蜜。 2021/3/122021/3/12Friday, March 12, 2021
易错提醒
56 －4 =16 56
－4 16
56 －4 =52 56 －4 52
