①
②
16 - 9 = 7
6 10
16 - 9 = 7 79
1 ③ 16 – 9 =7
0 想: 9 +(7)= 16
同学们: 今天我们学习的题目都有什么特 点呢? (十几减9)
计算十几减9可以用那些方法呢?
(可以用数的方法、也可以用计算 的方法、还可以用做减法想加法的 方法来计算。)
▪ 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。 2021/2/12021/2/1Monday, February 01, 2021
草莓一共有几个? 拿走9个, 还剩下几个? 该怎样列算式呢?
可以先拿走3个, 再拿走6个
13-3=10(个) 10 - 6=4(个)
从10个里 减去9个
10-9=1(个) 1+3=4(个)
4
还可以想:
9+()=13呢?
13-9=()
4
做一做:
1、用小棒摆一摆,算一算。
11 – 9 = 2
16 – 9 = 7
▪
THE END 17、一个人如果不到最高峰,他就没有片刻的安宁,他也就不会感到生命的恬静和光荣。2021/2/12021/2/12021/2/12021/2/1
谢谢观看
• 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.