2025年一本口算能力训练一年级数学下册人教版


注:目前有些书本章节名称可能整理的还不是很完善,但都是按照顺序排列的,请同学们按照顺序仔细查找。练习册 2025年一本口算能力训练一年级数学下册人教版 答案主要是用来给同学们做完题方便对答案用的,请勿直接抄袭。



《2025年一本口算能力训练一年级数学下册人教版》

1. 口算。(建议用时6分钟)
90 - 30 = 30 + 40 = 12 - 9 = 3 + 15 =
20 + 20 = 15 - 6 = 9 + 6 = 90 - 60 =
80 - 20 = 17 + 2 = 30 + 20 = 60 - 10 =
18 - 9 = 80 - 60 = 20 + 60 = 5 + 14 =
90 - 80 = 50 + 10 = 13 - 5 = 40 + 40 =
60 - 20 = 70 - 50 = 6 + 8 = 70 - 30 =
16 + 2 = 90 - 20 = 13 - 4 = 50 + 30 =
40 + 50 = 17 - 8 = 90 - 70 = 11 - 2 =
60 + 10 = 14 - 7 = 60 - 30 = 90 - 50 =
14 - 8 = 80 - 30 = 80 + 10 = 6 + 10 =
70 + 20 = 90 - 10 = 80 - 40 = 30 + 50 =
10 + 20 = 70 - 40 = 13 - 7 = 10 + 70 =
答案: 60     70     3      18
40     9      15     30
 60     19      50     50
 9      20      80     19
 10     60      8     80
 40     20      14     40
 18     70      9     80
 90     9      20     9
 70     7      30     40
 6      50     90     16
 90     80     40     80
 30     30      6      80
2. 在□里填上合适的数。(建议用时2分钟)
□ + 10 = 40 80 - □ = 60 20 + □ = 50
□ - 20 = 50 □ + 60 = 80 50 - □ = 40
10 + □ = 30 90 - □ = 20 □ + 30 = 70
80 - □ = 10 □ + 30 = 90 60 - □ = 20
答案: 30     20     30
 70     20     10
 20     70     40
 70     60     40
3. 填一填。(建议用时2分钟)
         70根40个50个
(1)足球和羽毛球一共有( )个。
(2)借走40根跳绳后,还剩( )根。
答案:
(1)90
(2)30

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