.![](https://wkrtcs.bdimg.com/rtcs/image?w=84&md5sum=df4785d0c58da4384408a0b2cfb80655&sign=5f9285c062&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=51&ipr={"t":"img","w":"84","h":"113","dataType":"png","c":"word/media/image1.png","imgOriW":110,"imgOriH":122})
（1） 柳树叶比枫叶多多少片？
（2） 再收集多少片杨树叶就和柳树叶一样
多了？
P20/6.乒乓球小组活动要来17名学生，2名
教练。现在已经来了8名学生。
（1） 还有几名学生没来？
（2） 还有几人没来？
P19/8.根据算式提出问题。
![](https://wkrtcs.bdimg.com/rtcs/image?w=70&md5sum=df4785d0c58da4384408a0b2cfb80655&sign=5f9285c062&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=51&ipr={"t":"img","w":"70","h":"107","dataType":"png","c":"word/media/image4.png","imgOriW":70,"imgOriH":107})
7 + 5 = 12（棵）
7 + 5 +8 = 20（棵）
22 – 20 = 2（棵）
![](https://wkrtcs.bdimg.com/rtcs/image?w=1.3333333333333&md5sum=df4785d0c58da4384408a0b2cfb80655&sign=5f9285c062&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=51&ipr={"t":"img","w":"1.3333333333333","h":"1012","dataType":"gif","c":"word/media/image7.png"})
P18/6.
![](https://wkrtcs.bdimg.com/rtcs/image?w=150&md5sum=df4785d0c58da4384408a0b2cfb80655&sign=5f9285c062&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=51&ipr={"t":"img","w":"150","h":"105","dataType":"png","c":"word/media/image8.png","imgOriW":200,"imgOriH":130})
（1） 白天鹅一共有多少只？
（2） 你还能提出什么数学问题并解答？
P18/7.先提出问题，再解答。
![](https://wkrtcs.bdimg.com/rtcs/image?w=136&md5sum=df4785d0c58da4384408a0b2cfb80655&sign=5f9285c062&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=51&ipr={"t":"img","w":"136","h":"100","dataType":"png","c":"word/media/image10.png","imgOriW":219,"imgOriH":137})
P15/7.
一共有13个萝卜。
![](https://wkrtcs.bdimg.com/rtcs/image?w=305&md5sum=df4785d0c58da4384408a0b2cfb80655&sign=5f9285c062&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=51&ipr={"t":"img","w":"305","h":"156","dataType":"png","c":"word/media/image12.png","imgOriW":332,"imgOriH":170})
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