两位数减一位数退位减法100以内口算题之欧阳体创编

70-8= 20-5= 40-7= 50-7= 80-4= 40-3= 60-2= 26-8= 24-7= 35-6= 45-6= 45-7= 45-8= 38-5= 38-6= 23-9= 30-4= 85-8= 53-9= 35-7= 40-5= 38-9=

68-3= 49-7=

60-2=

时间：创2021.0作2.03 ：欧阳体 30-6= 20-8= 50-4= 70-4= 20-5= 90-1= 60-7= 80-5= 70-3=

20-3= 70-5= 40-6= 80-8=

60-4= 30-5= 50-6= 50-7= 60-3=

37-8= 22-4= 23-9= 42-6=

41-7= 63-8= 53-6= 54-9=

81-2= 欧阳体创编 2021.02.03 73-7= 38-9= 45-9= 72-3=

24-6= 63-8= 72-5= 34-8=

71-7= 65-8= 48-9= 46-9= 49-8=

21-7=

49-9= 26-9= 53-7= 21-3=

53-8= 27-4= 53-9= 27-5=

54-6= 27-6= 35-8= 27-7=

35-9= 34-8= 37-4= 34-9=

44-9= 35-5=

45-5=

欧阳美创编 2021.02.03

45-9= 46-4= 46-5= 37-5= 37-6= 37-7= 37-8= 37-9= 38-2= 38-3= 38-4=

24-6= 24-7= 24-8= 24-9= 38-7= 38-8= 39-5= 39-6= 39-7= 39-8= 39-9=

欧阳体创编 2021.02.03 欧阳美创编 2021.02.03

43-7= 43-8= 43-9= 44-6= 44-7= 28-7= 28-9= 21-5= 22-7= 44-8= 46-6= 46-7= 26-8= 77-9=

38-2= 48-3= 58-4= 18-5= 62-6= 42-7= 27-8= 38-9= 22-3= 41-2= 20-3= 41-4= 42-5= 22-6=

34-7= 54-8= 34-9= 25-5= 75-6= 15-7= 25-8= 35-9= 46-4= 56-5= 35-6= 61-8= 22-9= 29-1=

欧阳体创编 2021.02.03 79-8= 49-9= 23-7= 61-2= 68-9= 78-4= 36-7= 54-8= 56-9= 21-3= 23-4= 34-5= 52-6= 27-7=

37-8= 62-8= 59-1= 24-9= 79-2= 33-7= 59-3= 53-8= 45-5= 52-5= 25-8= 34-9= 81-9= 15-9= 26-4= 55-6= 36-5= 24-7= 82-6= 34-8= 46-7= 59-9= 26-8= 23-7= 31-4= 43-8= 66-7=

64-9=

欧阳美创编 2021.02.03

24-6= 67-7= 37-8= 54-9= 25-5= 65-6= 33-7= 21-8= 37-9= 21-4= 66-5= 28-6= 21-7= 24-8=

27-9= 31-3= 24-4= 34-2= 52-3= 34-4= 41-5= 34-6= 14-7= 34-8= 21-2= 22-3= 24-6= 21-7=

欧阳体创编 2021.02.03 欧阳美创编 2021.02.03

23-4= 22-5= 71-6= 22-7= 24-5= 41-6= 22-7= 20-5= 25-6= 31-7= 24-8= 20-9= 24-7= 34-5=

34-5= 24-5= 51-5= 34-6= 24-9= 24-6= 34-7= 74-8= 44-9= 25-5= 32-6= 17-7= 22-8= 34-9=

22-4= 31-5= 34-6= 26-7= 26-8= 219= 24-3= 77-4= 31-5= 27-6= 52-7= 55-8= 27-9= 21-2=

欧阳体创编 2021.02.03 22-3= 51-4= 78-5= 24-6= 76-7= 29-8= 24-9= 35-8= 21-9= 34-6= 24-7=

时间：创2021.0作2.03 ：欧阳体

欧阳美创编 2021.02.03