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一年级数学口算题20以内加减法,一年级数学口算题20以内加减法100道

时间:2023-07-14 12:05:33

数学是一项重要的基础学科,一年级就是数学启蒙的时期,学生们需要通过口算来熟悉数字的运算规律。本篇文章提供了20以内加减法的100道数学口算题,以帮助一年级学生熟练掌握加减法的运算方法。让我们一起来挑战这100道习题,提高我们的计算水平吧!

第一部分:20以内加法(共50题)

1. 1 + 0 =

答:1

2. 2 + 1 =

答:3

3. 3 + 2 =

答:5

4. 4 + 3 =

答:7

5. 5 + 4 =

答:9

6. 6 + 5 =

答:11

7. 7 + 6 =

答:13

8. 8 + 7 =

答:15

9. 9 + 8 =

答:17

10. 10 + 9 =

答:19

11. 1 + 1 + 0 =

答:2

12. 2 + 1 + 1 =

答:4

13. 3 + 2 + 1 =

答:6

14. 4 + 3 + 2 =

答:9

15. 5 + 4 + 3 =

答:12

16. 6 + 5 + 4 =

答:15

17. 7 + 6 + 5 =

答:18

18. 8 + 7 + 6 =

答:21

19. 9 + 8 + 7 =

答:24

20. 10 + 9 + 8 =

答:27

21. 1 + 1 + 1 + 0 =

答:3

22. 2 + 1 + 1 + 1 =

答:5

23. 3 + 2 + 1 + 1 =

答:7

24. 4 + 3 + 2 + 1 =

答:10

25. 5 + 4 + 3 + 2 =

答:14

26. 6 + 5 + 4 + 3 =

答:18

27. 7 + 6 + 5 + 4 =

答:22

28. 8 + 7 + 6 + 5 =

答:26

29. 9 + 8 + 7 + 6 =

答:30

30. 10 + 9 + 8 + 7 =

答:34

31. 1 + 1 + 1 + 1 + 0 =

答:4

32. 2 + 1 + 1 + 1 + 1 =

答:6

33. 3 + 2 + 1 + 1 + 1 =

答:8

34. 4 + 3 + 2 + 1 + 1 =

答:11

35. 5 + 4 + 3 + 2 + 1 =

答:15

36. 6 + 5 + 4 + 3 + 2 =

答:20

37. 7 + 6 + 5 + 4 + 3 =

答:25

38. 8 + 7 + 6 + 5 + 4 =

答:30

39. 9 + 8 + 7 + 6 + 5 =

答:35

40. 10 + 9 + 8 + 7 + 6 =

答:40

41. 2 + 3 + 4 =

答:9

42. 3 + 4 + 5 =

答:12

43. 4 + 5 + 6 =

答:15

44. 5 + 6 + 7 =

答:18

45. 6 + 7 + 8 =

答:21

46. 7 + 8 + 9 =

答:24

47. 8 + 9 + 10 =

答:27

48. 9 + 10 + 11 =

答:30

49. 10 + 11 + 12 =

答:33

50. 2 + 3 + 4 + 5 =

答:14

第二部分:20以内减法(共50题)

51. 1 - 0 =

答:1

52. 2 - 1 =

答:1

53. 3 - 2 =

答:1

54. 4 - 3 =

答:1

55. 5 - 4 =

答:1

56. 6 - 5 =

答:1

57. 7 - 6 =

答:1

58. 8 - 7 =

答:1

59. 9 - 8 =

答:1

60. 10 - 9 =

答:1

61. 2 - 1 - 1 =

答:0

62. 3 - 2 - 1 =

答:0

63. 4 - 3 - 2 =

答:-1

64. 5 - 4 - 3 =

答:-2

65. 6 - 5 - 4 =

答:-3

66. 7 - 6 - 5 =

答:-4

67. 8 - 7 - 6 =

答:-5

68. 9 - 8 - 7 =

答:-6

69. 10 - 9 - 8 =

答:-7

70. 3 - 2 - 1 - 1 =

答:-1

71. 4 - 3 - 2 - 1 =

答:-2

72. 5 - 4 - 3 - 2 =

答:-4

73. 6 - 5 - 4 - 3 =

答:-6

74. 7 - 6 - 5 - 4 =

答:-8

75. 8 - 7 - 6 - 5 =

答:-10

76. 9 - 8 - 7 - 6 =

答:-11

77. 10 - 9 - 8 - 7 =

答:-4

78. 4 - 3 =

答:1

79. 5 - 4 =

答:1

80. 6 - 5 =

答:1

81. 7 - 6 =

答:1

82. 8 - 7 =

答:1

83. 9 - 8 =

答:1

84. 10 - 9 =

答:1

85. 5 - 3 =

答:2

86. 6 - 4 =

答:2

87. 7 - 5 =

答:2

88. 8 - 6 =

答:2

89. 9 - 7 =

答:2

90. 10 - 8 =

答:2

91. 6 - 3 =

答:3

92. 7 - 4 =

答:3

93. 8 - 5 =

答:3

94. 9 - 6 =

答:3

95. 10 - 7 =

答:3

96. 7 - 2 =

答:5

97. 8 - 3 =

答:5

98. 9 - 4 =

答:5

99. 10 - 5 =

答:5

100. 9 - 2 =

答:7

总结:

通过对这100道20以内加减法的练习,一年级学生可以逐步熟悉数字的运算规律,掌握基本的口算技能。在学习过程中,要注意对错习题的纠正和解释,并适时加强练习。只有不断地复习和巩固,才能提高计算速度和准确性。希望在各位老师和家长的指导下,孩子们能够喜欢数学,学好数学,为未来进一步的学习打下坚实的基础。

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