《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5分钟）
5 + 36 = 58 + 9 = 52 - 7 = 83 + 13 =
66 - 35 = 65 - 5 = 74 + 9 = 22 + 17 =
50 + 49 = 79 - 2 = 28 - 23 = 95 - 64 =
70 - 12 = 18 + 11 = 54 + 41 = 85 + 4 =
15 + 8 = 46 + 4 = 87 + 12 = 44 + 3 =
63 - 6 = 49 - 31 = 91 - 5 = 33 - 6 =
30 + 16 = 80 - 7 = 72 - 6 = 56 + 8 =
47 - 7 = 76 - 8 = 95 + 2 = 24 - 20 =
68 - 9 = 67 + 8 = 26 - 7 = 77 - 45 =
31 + 35 = 9 + 88 = 42 - 40 = 78 - 34 =

答案： 41 67 45 96
31 60 83 39
99 77 5 31
58 29 95 89
23 50 99 47
57 18 86 27
46 73 66 64
40 68 97 4
59 75 19 32
66 97 2 44

2. 列竖式计算。（建议用时4分钟）
70 - 55 = 44 + 9 = 68 + 12 = 83 - 27 =

答案： 15 53 80 56(竖式略)

3. 开心动物园有25只老虎，狼比老虎多6只，金丝猴比老虎少8只，开心动物园有 ( ) 只狼和 ( ) 只金丝猴。（建议用时1分钟）

答案： 31 17