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20以内借位减法口算练习题4000题(70)

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20以内借位减法口算练习题4000题 时间: 错误率: 20-4= 20-5= 10-7= 12-8= 11-9= 20-9= 16-9= 12-4= 13-5= 13-6= 14-6= 15-8= 20-2= 20-16= 12-9= 17-8= 20-8= 18-9= 15-6= 10-9= 11-6= 13-4= 11-5= 12-5= 20-18= 14-7= 20-12= 10-3= 10-1= 11-8= 20-6= 20-14= 11-7= 11-2= 10-2= 20-7= 13-8= 12-3= 12-6= 10-8= 14-5= 11-3= 16-8= 10-5= 13-9= 20-11= 20-15= 14-8= 12-7= 15-7= 17-9= 10-4= 16-7= 20-19= 15-9= 13-7= 20-13= 11-4= 10-6= 20-3= 20-17= 20-1= 14-9= 20-4= 20-5= 10-7= 12-8= 11-9= 20-9= 16-9= 12-4= 13-5= 13-6= 14-6= 15-8= 20-2= 20以内借位减法口算练习题4000题 时间: 错误率: 20-16= 12-9= 17-8= 20-8= 18-9= 15-6= 10-9= 11-6= 13-4= 11-5= 12-5= 20-18= 14-7= 20-12= 10-3= 10-1= 11-8= 20-6= 20-14= 11-7= 11-2= 10-2= 20-7= 13-8= 12-3= 12-6= 10-8= 14-5= 11-3= 16-8= 10-5= 13-9= 20-11= 20-15= 14-8= 12-7= 15-7= 17-9= 10-4= 16-7= 20-19= 15-9= 13-7= 20-13= 11-4= 10-6= 20-3= 20-17= 20-1= 14-9= 20-4= 20-5= 10-7= 12-8= 11-9= 20-9= 16-9= 12-4= 13-5= 13-6= 14-6= 15-8= 20-2= 20-16= 12-9= 17-8= 20-8= 18-9= 15-6= 10-9= 11-6= 13-4= 11-5= 12-5= 20-18= 14-7= 20以内借位减法口算练习题4000题 时间: 错误率: 20-12= 10-3= 10-1= 11-8= 20-6= 20-14= 11-7= 11-2= 10-2= 20-7= 13-8= 12-3= 12-6= 10-8= 14-5= 11-3= 16-8= 10-5= 13-9= 20-11= 20-15= 14-8= 12-7= 15-7= 17-9= 10-4= 16-7= 20-19= 15-9= 13-7= 20-13= 11-4= 10-6= 20-3= 20-17= 20-1= 14-9= 20-4= 20-5= 10-7= 12-8= 11-9= 20-9= 16-9= 12-4= 13-5= 13-6= 14-6= 15-8= 20-2= 20-16= 12-9= 17-8= 20-8= 18-9= 15-6= 10-9= 11-6= 13-4= 11-5= 12-5= 20-18= 14-7= 20-12= 10-3= 10-1= 11-8= 20-6= 20-14= 11-7= 11-2= 10-2= 20-7= 13-8= 12-3= 12-6= 20以内借位减法口算练习题4000题 时间: 错误率: 10-8= 14-5= 11-3= 16-8= 10-5= 13-9= 20-11= 20-15= 14-8= 12-7= 15-7= 17-9= 10-4= 16-7= 20-19= 15-9= 13-7= 20-13= 11-4= 10-6= 20-3= 20-17= 20-1= 14-9= 20-4= 20-5= 10-7= 12-8= 11-9= 20-9= 16-9= 12-4= 13-5= 13-6= 14-6= 15-8= 20-2= 20-16= 12-9= 17-8= 20-8= 18-9= 15-6= 10-9= 11-6= 13-4= 11-5= 12-5= 20-18= 14-7= 20-12= 10-3= 10-1= 11-8= 20-6= 20-14= 11-7= 11-2= 10-2= 20-7= 13-8= 12-3= 12-6= 10-8= 14-5= 11-3= 16-8= 10-5= 13-9= 20-11= 20-15= 14-8= 12-7= 15-7= 17-9= 10-4= 20以内借位减法口算练习题4000题 时间: 错误率: 16-7= 20-19= 15-9= 13-7= 20-13= 11-4= 10-6= 20-3= 20-17= 20-1= 14-9= 20-4= 20-5= 10-7= 12-8= 11-9= 20-9= 16-9= 12-4= 13-5= 13-6= 14-6= 15-8= 20-2= 20-16= 12-9= 17-8= 20-8= 18-9= 15-6= 10-9= 11-6= 13-4= 11-5= 12-5= 20-18= 14-7= 20-12= 10-3= 10-1= 11-8= 20-6= 20-14= 11-7= 11-2= 10-2= 20-7= 13-8= 12-3= 12-6= 10-8= 14-5= 11-3= 16-8= 10-5= 13-9= 20-11= 20-15= 14-8= 12-7= 15-7= 17-9= 10-4= 16-7= 20-19= 15-9= 13-7= 20-13= 11-4= 10-6= 20-3= 20-17= 20-1= 14-9= 20-4= 20-5= 20以内借位减法口算练习题4000题 时间: 错误率: 10-7= 12-8= 11-9= 20-9= 16-9= 12-4= 13-5= 13-6= 14-6= 。

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