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20以内退位减法口算练习题
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13-4= 13-5= 12-4= 10-4= 14-8= 17-9= 10-6= 10-5= 17-9= 12-7= 14-9= 14-8= 11-8= 11-2= 11-5= 10-7= 15-9= 16-8= 13-5= 11-6= 11-6= 15-6= 15-9= 12-3= 13-6= 16-7= 13-5= 16-8= 13-9= 10-9= 12-4= 15-7= 10-5= 15-9= 11-3= 12-7= 10-9= 10-4= 11-7= 13-9= 11-5= 10-7= 12-6= 11-3= 17-9= 10-8= 10-3= 10-3= 12-8= 15-8=
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20以内退位减法口算练习题
15-8= 10-4= 13-8= 18-9= 10-3= 11-2= 11-8= 12-7= 14-7= 11-2= .
12-8= 17-8= 12-7= 18-9= 11-2= 13-9= 14-8= 14-7= 10-3= 11-9= 10-1= 15-6= 16-7= 14-7= 12-8= 13-9= 17-8= 13-6= 10-1= 13-9= 13-8= 16-9= 18-9= 14-9= 16-9= 11-9= 16-8= 13-7= 16-7= 15-6= 16-9= 15-9= 16-8= 11-9= 16-7= 15-9= 10-3= 10-3= 12-8= 15-8=
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20以内加减法口算练习题
9-3= 9-3= 8-1= 17-6= 11-7= 14+0= 17-9= 3-3= 0+14= 8+8= 8+9= 16-9= 11+6= 9-7= 9+11= .
17-3= 11-7= 17-3= 4-3= 3+8= 6-5= 15+1= 8+7= 7-4= 8+1=