100以内退位减法1
先读1遍(),计时()分()秒 姓名__________
38-9= 13-4= 12-6= 60-8= 98-9= 70-7= 60-9= 60-4= 74-5= 80-4= 20-1= 86-7= 44-5= 52-6= 26-7= 36-7= 17-8= 61-8= 93-8= 61-3= 82-4= 30-7= 22-7= 81-9= 40-3=
70-9= 34-8= 71-4= 93-4= 60-8= 68-9= 70-2= 30-8= 14-6= 40-8= 37-9= 60-4= 41-6= 40-4= 15-9= 51-7= 32-7= 80-5= 71-9= 91-2= 55-7= 26-9= 31-5= 30-6= 80-9=
72-5= 21-3= 43-7= 61-8= 100-9= 12-7= 23-8= 15-8= 13-9= 24-7= 62-3= 20-1= 63-6= 60-8= 24-7= 61-6= 26-7= 22-9= 14-9= 15-9= 44-5= 92-3= 83-5= 70-4= 13-8=
41-7= 65-8= 71-9= 24-6= 91-3= 75-7= 30-6= 80-3= 100-3= 11-5= 12-8= 31-7= 60-5= 90-9= 30-5= 14-9= 50-6= 81-2= 55-6= 82-6= 62-3= 10-8= 21-7= 82-4= 41-9=
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