一升二暑假作业【20以内退位进位加减法】口算题30份

一升二暑假作业【20以内退位进位加减法】口算题30份


简介:
11-6= 13-7= 14-9= 12-8= 11-9= 12-9= 12-7= 11-3= 12-3= 16-7= 15-6= 13-9= 17-9= 14-8= 15-9= 17-8= 13-8= 12-6= 14-7= 11-6= 14-6= 11-4= 11-2= 13-4= 13-6= 12-4= 11-8= 12-5=