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1、一天一练 1 1. 计算题 6 + 6 = 11 - 6 = 16 -( )=9( )+9 = 13 9 + 8 = 14 - 5 = ( )+10 = 19( )-8 = 3 4 + 2 = 12 - 4 = 15 -( )=98 +( )=19 8 - 3 = 11 - 8 = 2 +( )=15( )+8 = 11 11 - 5 = 5 + 5 = ( )-9 = 3( )+14 = 17 6 + 13 = 17 - 9 = 7 +( )=1911 -( )=8 12 - 3 = 4 + 8 = 16 - 8 - 7 =9 +3 + 3 = 7 + 7 = 3 + 13 = 6 + 3
2、- 2 =7 - 2 + 1 = 6 + 8 = 13 - 4 = 7 - 2 + 4 =3 +9 - 8 = 12 - 7 = 17 - 2 = 10 + 3 - 9 =18 - 3 - 9 = 8 + 7 = 19 - 5 = 11 - 4 - 3 =7 +3 - 4 = 11 - 2 = 5 + 6 = 17 - 4 - 4 =11 + 3 + 1 = 4 + 6 = 10 - 3 = 16 -( )=12( )+8 = 13 2. 解决问题 哥哥 4 个苹果 ,姐姐有 3 个苹果 ,弟弟有 8 个苹果 ,哥哥给弟弟 1 个后， 弟弟吃了 3 个，这时谁的苹果多？ 一天一练 2 1.计算
3、题 3 + 8 = 16 - 7 = 5 +( )=14( )-9 = 9 17 - 8 = 3 + 7 = ( )-3 = 1217 -( )=15 8 + 8 = 11 - 7 = ( )-3 = 132 +( )=11 18 - 9 = 14 + 3 = ( )-7 = 5( )+9 = 18 6 + 7 = 9 + 9 = 3 +( )=1213 -( )=7 12 - 6 = 10 - 5 = ( )-6 = 5( )+12 = 18 11 - 3 = 4 + 4 = 3 + 4 + 4 =15 - 4 - 8 = 7 - 3 = 11 - 9 = 13 - 2 - 2 =10 +
4、2 + 2 = 3 + 6 = 5 + 7 = 12 + 3 - 7 =14 - 2 - 6 = 2 + 8 = 13 - 5 = 10 - 4 + 2 =5 + 3 - 3 = 16 - 9 = 11 - 4 = 8 + 4 - 5 =9 - 5 + 3 = 12 - 5 = 5 + 8 = 11 - 3 - 5 =6 + 2 - 6 = 4 + 7 = 3 + 15 = 8+( )=14( )-11 = 9 2.解决问题 有一本书，小华第一天看了2 页，以后每一天都比前一天多看2 页，第 4 天看 了多少页？ 一天一练 3 1.计算题 5 + 9 = 12 - 8 = 11 -( )= 4
5、 ( )- 9 = 4 16 - 8 = 7 + 8 = 3 +( )= 11 ( )+ 10 = 18 8 + 5 = 3 + 9 = ( )- 3 = 15 2 +( )= 14 15 - 7 = 13 - 6 = ( )+ 9 = 18 ( )- 2 = 9 9 + 2 = 6 + 8 = ( )- 7 = 8 13 -( )= 6 16 - 7 = 4 + 9 = 15 -( )= 13 ( )+ 7 = 11 6 + 7 = 8 + 3 = 16 + 3 - 8 = 5 + 7 - 4 = 17 - 9 = 13 - 8 = 15 - 6 - 4 = 14 - 6 - 1 = 5 +
6、 7 = 12 - 9 = 10 + 5 - 2 = 16 - 4 - 6 = 15 - 6 = 7 + 7 = 6 + 4 - 1 = 7 + 4 - 6 = 8 + 9 = 9 + 4 = 13 - 4 + 1 = 15 - 4 - 5 = 12 - 6 = 11 - 8 = 7 + 4 + 3 = 8 + 7 - 3 = 9 + 3 = 6 + 6 = 12 -( )= 5 ( )- 9 = 7 2.解决问题 同学们排队做操，小明前面有4 个人，后面有 4 个人，这一队一共有多少人？ 一天一练 4 1.计算题 2 + 9 = 8 + 8 = 4 +( )= 13 17 -( )= 9 1
7、2 - 5 = 6 + 9 = ( )- 8 = 9 9 +( )= 19 14 - 8 = 7 + 6 = ( )- 3 = 9 ( )+ 9 = 11 12 - 7 = 15 - 8 = 4 +( )= 17 16 -( )= 7 8 + 7 = 9 + 9 = ( )+ 8 = 12 ( )+ 14 = 16 13 - 7 = 4 + 8 = 16 -( )= 13 3 +( )= 19 7 + 9 = 14 - 7 = 14 - 3 - 7 = 13 + 4 + 2 = 5 + 6 = 8 + 6 = 10 - 6 - 3 = 18 - 4 + 2 = 8 + 4 = 11 - 6 =
8、 7 + 3 + 4 = 11 + 4 - 9 = 11 - 5 = 9 + 7 = 16 - 4 + 3 = 7 + 4 - 7 = 3 + 8 = 14 - 6 = 8 + 4 + 1 = 9 + 7 - 5 = 17 - 8 = 5 + 8 = 16 - 4 - 2 = 17 - 3 - 8 = 9 + 8 = 11 - 9 = 4 +( )= 12 17 -( )= 6 2.解决问题 同学们排队做操，从前面数，小明排第4，从后面数，小明排第5，这一队一共 有多少人？ 一天一练 5 1.计算题 4 + 9 = 7 + 7 = 11 -( )= 2 ( )+ 10 = 19 18 - 9
9、= 11 - 5 = ( )+ 8 = 11 2 +( )= 15 4 + 14 = 3 + 9 = 13 -( )= 5 9 -( )= 2 12 - 4 = 14 - 2 = ( )+ 14 = 18 ( )- 2 = 17 8 + 9 = 5 + 6 = 18 -( )= 16 2 +( )= 11 6 + 7 = 16 - 9 = 9 +( )= 18 ( )- 8 = 8 12 - 7 = 8 + 8 = 5 + 5 - 2 = 18 - 9 - 4 = 13 - 9 = 7 + 9 = 16 - 8 - 5 = 7 + 6 - 3 = 6 + 12 = 14 - 6 = 4 + 7
10、 - 9 = 17 - 5 - 8 = 5 + 8 = 15 - 3 = 12 - 5 - 6 = 15 - 5 - 9 = 15 - 7 = 2 + 17 = 13 - 7 - 6 = 8 + 7 - 8 = 17 - 4 = 10 - 7 = 4 + 5 + 9 = 14 - 6 + 9 = 9 + 9 = 14 - 9 = 11 -( )= 4 ( )+ 12 = 19 2.解决问题 有 8 个皮球，如果男生每人发一个，就多2 个，如果女生每人发一个，就少2 个，男生有多少人，女生有多少人？ 一天一练 6 1.计算题 18 - 3 = 3 + 8 = 12 -( )= 8 ( )+ 9
11、= 13 8 + 7 = 17 - 9 = ( )- 9 = 5 2 +( )= 19 11 - 9 = 4 + 7 = 3 +( )= 12 ( )- 9 = 8 4 + 8 = 13 - 5 = 11 -( )= 5 8 +( )= 18 12 - 9 = 6 + 6 = ( )+ 15 = 17 ( )- 6 = 9 4 + 9 = 11 - 7 = 12 -( )= 5 5 +( )= 14 14 - 7 = 5 + 7 = 14 - 6 - 3 = 7 + 7 - 6 = 6 + 13 = 16 - 8 = 16 - 3 - 8 = 13 - 6 + 8 = 15 - 9 = 5 +
12、 9 = 8 + 8 - 4 = 15 - 6 - 2 = 7 + 8 = 18 - 4 = 13 - 9 - 2 = 9 + 5 - 5 = 11 - 3 = 3 + 13 = 16 - 7 + 8 = 3 + 6 + 8 = 6 + 9 = 13 - 7 = 4 + 8 - 7 = 17 - 3 - 9 = 12 - 6 = 6 + 8 = 15 -( )= 8 ( )+ 9 = 17 2.解决问题 有 5 个同学投沙包，老师如果发给每人2 个沙包就差 1 个，老师共有多少个沙 包？ 一天一练 7 1.计算题 8 + 5 = 19 - 7 = 18 -( )= 15 8 +( )= 19
13、3 + 14 = 12 - 4 = 3 +( )= 11 13 -( )= 4 13 - 4 = 3 + 9 = 9 -( )= 4 2 +( )= 15 15 - 6 = 17 - 8 = 18 -( )= 12 ( )+ 9 = 12 6 + 9 = 16 - 2 = ( )- 7 = 5 3 +( )= 18 11 - 4 = 7 + 5 = 9 +( )= 19 11 -( )= 6 19 - 5 = 15 - 2 = 7 + 3 - 2 = 17 - 8 - 3 = 13 - 6 = 9 + 9 = 13 - 5 - 4 = 4 + 8 - 3 = 6 + 6 = 14 - 6 =
14、6 + 6 - 9 = 15 - 6 - 6 = 7 + 9 = 18 - 4 = 14 - 5 - 5 = 18 - 6 - 9 = 3 + 13 = 14 - 7 = 19 - 5 - 9 = 8 + 8 - 7 = 15 - 7 = 8 + 7 = 4 + 4 - 8 = 11 - 6 + 9 = 7 + 7 = 12 - 6 = 18 -( )= 12 12 +( )= 19 2.解决问题 刚刚有 9 本书，爸爸又给他买了5 本，小明借去 2 本，刚刚还有几本书？ 一天一练 8 1. 计算题 5 + 7 = 9 + 2 = 14 -( )= 5 4 +( )= 11 18 - 9 =
15、17 - 4 = ( )+ 9 = 14 ( )- 7 = 9 11 - 5 = 8 + 8 = 4 +( )= 13 18 -( )= 9 9 + 4 = 12 - 5 = ( )- 2 = 9 ( )+ 12 = 19 16 - 8 = 17 - 3 = 12 -( )= 9 7 +( )= 19 15 - 3 = 5 + 9 = ( )+ 9 = 11 16 -( )= 7 8 + 6 = 13 - 5 = 5 + 7 - 5 = 15 - 7 + 8 = 12 - 3 = 16 - 7 = 17 - 6 - 7 = 18 - 7 - 2 = 6 + 7 = 8 + 3 = 14 - 5
16、 + 9 = 6 + 9 - 4 = 19 - 3 = 7 + 4 = 8 + 6 - 6 = 12 - 8 - 2 = 8 + 4 = 14 - 5 = 13 - 4 - 8 = 19 - 5 - 8 = 11 - 2 = 6 + 5 = 4 + 4 + 8 = 3 + 7 + 9 = 8 + 9 = 11 - 3 = 14 -( )=9 9 +( )= 11 2.解决问题 一队小学生，有 8 个学生比小明高，有4 个学生比他矮，这队小学生共有多少 人？ 一天一练 9 1. 计算题 4 + 14 = 9 + 2 = 14 -( )= 6 2 +( )= 11 11 - 5 = 7 + 7 =
17、 ( )+ 7 = 14 ( )- 5 = 7 9 + 6 = 14 - 6 = 12 -( )= 6 ( )- 7 = 4 8 + 7 = 6 + 5 = ( )+ 5 = 11 ( )- 8 = 9 14 - 7 = 18 - 9 = 11 -( )= 7 13 -( )= 9 5 + 12 = 9 + 8 = 5 +( )= 12 ( )+ 8 = 13 7 + 5 = 16 - 7 = 4 + 7 - 2 = 13 - 4 + 8 = 11 - 6 = 7 + 4 = 17 - 4 - 9 = 19 - 7 - 8 = 9 + 9 = 13 - 6 = 13 - 8 + 9 = 8 +
18、 6 - 5 = 13 - 4 = 11 - 3 = 9 + 4 - 8 = 19 - 6 - 9 = 6 + 6 = 9 + 5 = 11 - 5 + 9 = 16 - 8 - 7 = 11 - 9 = 12 - 4 = 2 + 8 + 9 = 8 + 2 - 9 = 6 + 7 = 12 - 3 = 14 -( )= 5 3 +( )= 11 2.解决问题 哥哥送给弟弟 5 支铅笔后，还剩 6 支，哥哥原来有几支铅笔？ 一天一练 10 1. 计算题 11 - 7 = 3 + 16 = ( )+ 9 = 16 ( )- 8 = 8 14 - 5 = 8 + 3 = 18 -( )= 9 (
19、)+ 8 = 11 8 + 8 = 16 - 8 = 4 +( )= 10 17 -( )= 8 17 - 8 = 7 + 6 = ( )- 6 = 9 8 +( )= 15 9 + 4 = 11 - 4 = 9 +( )= 17 ( )- 8 = 5 19 - 2 = 17 - 9 = ( )- 9 = 3 15 -( )= 8 4 + 13 = 9 + 3 = 11 - 6 - 2 = 9 + 5 - 3 = 11 - 8 = 13 - 5 = 8 + 5 - 4 = 12 - 4 - 2 = 8 + 4 = 15 - 7 = 14 - 6 - 8 = 6 + 3 + 8 = 12 - 6
20、 = 8 + 6 = 9 + 7 - 6 = 15 - 8 - 3 = 15 - 6 = 6 + 13 = 17 - 8 - 5 = 7 + 7 - 7 = 8 + 5 = 12 - 5 = 13 - 4 - 6 = 14 - 5 - 4 = 11 - 2 = 9 + 7 = ( )+ 3 = 16 ( )- 11 = 8 2.解决问题 第二中队有 8 名男同学，女同学的人数跟男同学同样多，第二中队共有多少名 同学？ 一天一练 11 1. 计算题 9 + 9 = 15 - 9 = 15 -( )= 9 ( )- 8 = 3 12 - 6 = 4 + 14 = ( )+ 8 = 15 14 -(
21、 )= 7 7 + 7 = 13 - 9 = ( )- 4 = 6 ( )- 8 = 2 18 - 6 = 7 + 9 = 13 -( )= 6 ( )+ 9 = 14 3 + 8 = 11 - 7 = ( )+ 4 = 12 19 -( )= 12 16 - 9 = 17 - 2 = 9 +( )= 11 ( )- 5 = 8 5 + 8 = 4 + 7 = 9 + 4 - 2 = 13 - 6 - 2 = 14 - 4 = 18 - 9 = 12 - 7 - 2 = 5 + 6 - 3 = 6 + 6 = 14 - 7 = 13 - 5 + 9 = 17 - 8 - 8 = 14 - 8
22、= 4 + 9 = 7 + 4 + 8 = 14 - 7 + 9 = 15 - 3 = 15 - 8 = 18 - 3 - 9 = 8 + 3 - 7 = 3 + 9 = 11 - 6 = 4 + 6 - 8 = 18 - 9 - 9 = 13 - 8 = 3 + 15 = 16 -( )= 9 ( )- 8 = 6 2.解决问题 大华和小刚每人有10 张画片，大华给小刚2 张后，小刚比大华多几张？ 一天一练 12 1. 计算题 12 - 7 = 6 + 7 = 4 +( )= 15 ( )+ 6 = 13 8 + 9 = 19 - 8 = ( )+ 6 = 14 ( )- 9 = 5 6 +
23、 13 = 4 + 8 = 11 -( )= 4 8 +( )= 17 2 + 17 = 12 - 9 = ( )- 9 = 8 ( )+ 7 = 16 7 + 8 = 4 + 12 = ( )- 7 = 5 12 -( )= 8 11 - 8 = 6 + 9 = 9 +( )= 18 ( )- 8 = 7 14 + 3 = 5 + 7 = 7 + 3 - 4 = 18 - 9 + 8 = 5 + 9 = 2 + 16 = 15 - 7 - 7 = 8 + 4 - 5 = 5 + 6 = 17 - 9 = 6 + 6 - 6 = 16 - 7 - 3 = 13 - 7 = 6 + 8 = 18
24、 - 9 - 8 = 9 + 5 - 9 = 11 - 9 = 16 - 8 = 14 - 7 - 6 = 11 - 6 - 4 = 8 + 8 = 12 - 8 = 5 + 4 + 9 = 18 - 9 - 5 = 14 - 9 = 2 + 9 = 9 +( )= 15 ( )+ 7 = 13 2.解决问题 猫妈妈给小白 5 条鱼，给小花 4 条鱼，小白和小花共吃了6 条，它们还有几条？ 一天一练 13 1. 计算题 5 + 7 = 3 + 8 = ( )+ 8 = 16 17 -( )= 9 2 + 9 = 18 - 9 = ( )- 5 = 6 ( )+ 7 = 11 14 - 5 =
25、5 + 9 = 4 +( )= 12 13 -( )= 8 8 + 7 = 13 - 4 = ( )- 8 = 6 11 -( )= 5 15 - 6 = 9 + 3 = 17 -( )= 14 5 +( )= 14 5 + 6 = 17 - 4 = 12 -( )= 9 ( )- 9 = 2 9 + 8 = 6 + 7 = 5 + 8 - 2 = 14 - 5 - 2 = 12 - 9 = 16 - 8 = 12 - 3 - 8 = 8 + 7 - 3 = 4 + 9 = 5 + 8 = 8 + 3 + 8 = 16 - 2 - 9 = 11 - 4 = 9 + 2 = 16 - 5 - 8
26、 = 15 - 6 + 7 = 8 + 6 = 8 + 8 = 5 + 3 + 9 = 12 - 4 + 9 = 12 - 7 = 14 - 7 = 13 - 4 - 9 = 8 + 4 - 9 = 9 + 4 = 7 + 8 = ( )+ 7= 16 18 -( )= 9 2.解决问题 同学们到体育馆借球，一班借了9 只，二班借了 6 只。体育馆的球共减少了几 只？ 一天一练 14 1. 计算题 7 + 9 = 11 - 6 = ( )- 5 = 5 ( )+ 8 = 14 16 - 3 = 6 + 8 = 7 +( )= 15 16 -( )= 7 17 - 8 = 13 - 8 = (
27、)- 6 = 6 ( )- 8 = 4 4 + 8 = 8 + 9 = 15 -( )= 6 3 +( )= 11 18 - 2 = 14 - 8 = ( )- 9 = 4 ( )+ 9 = 18 9 + 7 = 6 + 6 = 6 +( )= 13 ( )- 7 = 8 14 - 6 = 3 + 9 = 12 - 9 - 2 = 7 + 6 - 8 = 9 + 9 = 15 - 7 = 16 - 8 - 3 = 11 - 4 - 4 = 11 - 9 = 13 - 6 = 6 + 5 - 4 = 17 - 9 - 5 = 7 + 7 = 9 + 6 = 13 - 6 - 7 = 7 + 7
28、- 5 = 16 - 7 = 12 - 4 = 3 + 8 - 7 = 15 - 9 - 6 = 9 + 5 = 4 + 7 = 16 - 7 + 9 = 9 + 4 - 6 = 11 - 3 = 6 + 9 = ( )- 6 = 5 ( )+ 9 = 14 2.解决问题 明明从布袋里拿出5 个白皮球和 5 个花皮球后， 白皮球剩下 10 个，花皮球剩下 5 个。布袋里原来有多少个白皮球，多少个花皮球？ 一天一练 15 1. 计算题 12 - 3 = 8 + 9 = 9 +( )= 14 18 -( )= 13 4 + 14 = 15 - 6 = ( )- 4 = 10 15 -( )= 7
29、8 + 8 = 18 - 3 = 13 -( )= 7 ( )+ 9 = 15 18 - 4 = 4 + 9 = ( )- 9 = 7 ( )- 6 = 8 3 + 8 = 11 - 5 = 7 +( )= 16 8 +( )= 14 14 - 7 = 6 + 12 = ( )+ 3 = 11 14 -( )= 5 5 + 8 = 14 + 5 = 9 + 6 - 2 = 15 - 7 - 5 = 16 - 8 = 5 + 7 = 13 - 5 - 6 = 11 - 3 - 8 = 13 - 5 = 3 + 9 = 18 - 9 - 7 = 3 + 8 - 4 = 4 + 7 = 19 - 6
30、 = 7 + 3 + 9 = 14 - 3 - 9 = 7 + 9 = 13 - 6 = 17 - 7 - 8 = 12 - 5 - 4 = 11 - 3 = 14 - 5 = 6 + 5 - 7 = 16 - 7 - 9 = 12 - 6 = 6 + 7 = 8 +( )= 14 20 -( )= 13 2.解决问题 妈妈买回一些鸭蛋和12 个鸡蛋，吃了 8 个鸡蛋后，剩下的鸡蛋和鸭蛋同样多， 问妈妈一共买回几个蛋？ 一天一练 16 1. 计算题 18 - 9 = 12 - 4 = ( )- 4 = 7 8 +( )= 12 2 + 12 = 6 + 9 = 17 -( )= 12 ( )+
31、 9 = 13 6 + 6 = 17 - 4 = 14 -( )= 8 10 -( )= 4 15 - 7 = 7 + 8 = ( )- 7 = 9 ( )- 7 = 6 14 - 6 = 5 + 6 = 12 -( )= 5 4 +( )= 11 2 + 9 = 16 - 7 = ( )+ 8 = 17 ( )+ 2 = 11 7 + 12 = 18 - 5 = 7 + 3 - 5 = 14 - 7 - 2 = 11 - 4 = 6 + 8 = 17 - 9 + 9 = 6 + 4 - 3 = 7 + 7 = 13 - 4 = 8 + 9 - 9 = 13 - 9 + 7 = 17 - 5
32、= 4 + 8 = 16 - 9 - 3 = 9 + 9 - 8 = 2 + 16 = 17 - 8 = 15 - 6 + 9 = 17 - 6 - 2 = 9 + 9 = 12 - 5 = 5 + 8 - 6 = 2 + 9 + 8 = 11 - 2 = 5 + 9 = ( )- 7 = 7 8 +( )= 16 2.解决问题 草地上有 10 只羊，跑走了 3 只白山羊， 又来了 7 只黑山羊，现在共有几只羊？ 一天一练 17 1. 计算题 8 + 6 = 5 + 8 = ( )- 8 = 3 9 +( )= 16 15 - 8 = 14 - 5 = ( )+ 7 = 14 ( )- 8 =
33、 4 9 + 8 = 16 - 8 = 12 -( )= 6 11 -( )= 7 5 + 6 = 8 + 9 = ( )+ 7 = 15 ( )- 8 = 7 18 - 9 = 11 - 7 = ( )- 5 = 9 ( )+ 5 = 14 9 + 3 = 15 - 9 = ( )+ 8 = 16 15 -( )= 13 13 - 8 = 6 + 8 = 14 - 6 - 5 = 8 + 4 - 3 = 8 + 4 = 15 - 7 = 7 + 4 - 8 = 15 - 6 - 8 = 14 - 7 = 9 + 5 = 11 - 4 - 6 = 5 + 5 + 9 = 7 + 5 = 16
34、- 7 = 8 + 9 - 5 = 17 - 5 - 3 = 6 + 9 = 17 - 9 = 12 - 5 - 7 = 14 - 5 - 9 = 12 - 8 = 7 + 7 = 3 + 8 + 8 = 2 + 9 - 7 = 7 + 8 = 14 - 9 = ( )- 11 = 3 9 +( )= 17 2.解决问题 春天来了，小明、小冬和小强到郊外捉蝴蝶，小明捉了3 只，小冬捉了 5 只， 他们一共捉了 12 只，小强捉了几只？ 一天一练 18 1. 计算题 12 - 9 = 7 + 9 = 14 -( )= 8 19 -( )= 12 9 + 4 = 17 - 8 = ( )- 5 =
35、 8 6 +( )= 14 6 + 6 = 7 + 6 = ( )+ 8 = 17 ( )+ 2 = 11 11 - 6 = 12 - 6 = 12 -( )= 5 ( )- 2 = 15 8 + 8 = 9 + 6 = ( )+ 15 = 18 7 +( )= 13 12 - 7 = 7 + 4 = 4 +( )= 13 ( )- 3 = 8 9 + 9 = 14 - 8 = 15 - 8 - 4 = 6 + 8 - 4 = 11 - 9 = 8 + 3 = 18 - 6 - 8 = 13 - 6 + 7 = 8 + 7 = 13 - 9 = 3 + 9 - 2 = 16 - 8 - 2 =
36、 16 - 9 = 5 + 9 = 17 - 5 - 9 = 7 + 7 - 9 = 8 + 5 = 11 - 8 = 16 - 9 + 9 = 13 - 5 - 2 = 13 - 7 = 9 + 7 = 17 - 8 + 9 = 5 + 5 - 6 = 9 + 2 = 6 + 5 = 18 -( )= 8 19 -( )= 10 2.解决问题 小华和爸爸、妈妈为植树节义务植树，小华植了1 棵，爸爸植了 5 棵，妈妈比 爸爸少植 2 棵，妈妈植了多少棵，他们一共植了多少棵？ 一天一练 19 1. 计算题 11 - 9 = 4 + 8 = 9 +( )= 12 ( )- 4 = 9 5 + 8
37、= 13 - 6 = 16 -( )= 14 ( )+ 5 = 13 15 - 6 = 7 + 9 = ( )- 7 = 8 16 -( )= 8 3 + 8 = 12 - 9 = 19 -( )= 13 ( )- 5 = 6 2 + 9 = 16 - 7 = 6 +( )= 15 ( )- 9 = 3 14 - 7 = 7 + 5 = ( )- 8 = 6 ( )+ 8 = 14 13 - 8 = 14 - 6 = 17 - 3 - 8 = 5 + 6 - 9 = 8 + 9 = 7 + 6 = 9 + 3 - 4 = 15 - 8 - 7 = 5 + 6 = 15 - 8 = 19 - 8
38、 - 9 = 4 + 9 - 5 = 16 - 9 = 5 + 9 = 17 - 9 - 2 = 18 - 7 - 8 = 4 + 7 = 8 + 7 = 16 - 5 - 9 = 15 - 8 + 9 = 3 + 9 = 14 - 9 = 5 + 7 - 8 = 8 + 5 - 7 = 17 - 8 = 7 + 7 = 9 +( )= 15 ( )- 5 = 9 2.解决问题 第一个盘子里有 5 个梨，第二个盘子里有4 个梨，把第一个盘里拿1 个放到第 二个盘里，现在一共有多少个梨？ 一天一练 20 1. 计算题 15 - 7 = 9 + 9 = 19 -( )= 14 ( )+ 9 = 1
39、3 6 + 6 = 17 - 9 = ( )+ 13 = 16 4 +( )= 17 11 - 7 = 6 + 7 = ( )+ 8 = 12 ( )- 5 = 7 6 + 9 = 11 - 8 = 11 -( )= 9 3 +( )= 11 9 + 8 = 8 + 5 = ( )- 8 = 8 7 +( )= 12 14 - 8 = 15 - 9 = ( )- 6 = 9 8 +( )= 15 9 + 7 = 6 + 8 = 11 - 4 - 2 = 6 + 6 - 3 = 13 - 9 = 5 + 7 = 5 + 6 + 8 = 16 - 8 + 7 = 8 + 8 = 12 - 7 = 14 - 8 - 6 = 4 + 4 + 9 = 12 - 8 = 7 + 8 = 8 + 9 - 2 = 12 - 4 - 3 = 14 - 5 = 16 - 8 = 16 - 4 - 5 = 13 - 8 - 4 = 12 - 6 = 4 + 9 = 16 - 8 + 9 = 7 + 4 - 6 = 13 - 7 = 18 - 9 = 19 -( )= 12 ( )+ 7= 13 2.解决问题 日落西山晚霞红，我把小鸡赶进笼。一半小鸡进了笼，还有5 只在捉虫，另外 5 只围着我，叽叽喳喳闹哄哄。小朋友们算一算，多少小鸡进了笼？