20以内退位减法表 11-211-311-411-511-611-711-811-9 12-312-412-512-612-712-812-9 13-413-513-613-713-813-9 14-54-614-714814-9 15-615715-8159 16-716-816-9 17-817-9
11-9 12-9 13-9 14-9 15-9 16-9 17-8 17-9 11-8 12-8 13-8 14-8 15-8 16-7 16-8 11-7 12-7 13-7 14-7 15-6 15-7 11-6 12-6 13-6 14-5 14-6 11-5 12-5 13-4 13-5 11-4 12-3 12-4 11-2 11-3 20以内退位减法表 得数
20以内退位减法表 11-911811-711-611-511-411-311-2 12-912-812-712-612-512-412-3 13-913-813-713-613-513-4 14914-814-714-614-5 15-915-815-715-6 16-916-816-7 17-917-8 18-9 横
20以内退位减法表 18-9 11-9 12-9 13-9 14-9 15-9 16-9 17-9 17-8 11-8 12-8 13-8 14-8 15-8 16-8 16-7 11-7 12-7 13-7 14-7 15-7 15-6 11-6 12-6 13-6 14-6 14-5 11-5 12-5 13-5 13-4 11-4 12-4 12-3 11-3 11-2 横
20以内退位减法表 11-911-811-711-611511-41-311-2 12-912-812-712-612-512-412-3 13-913-813-713-613-513-4 14-914814-714-6145 15-915-815-715-6 16-916-816-7 17-917-8 18-9
18-9 11-9 12-9 13-9 14-9 15-9 16-9 17-9 17-8 11-8 12-8 13-8 14-8 15-8 16-8 16-7 11-7 12-7 13-7 14-7 15-7 15-6 11-6 12-6 13-6 14-6 14-5 11-5 12-5 13-5 13-4 11-4 12-4 12-3 11-3 11-2 20以内退位减法表 竖
20以内退位减法表 2=3=4=5=6=7=8=9 12912812726125124123 13-91328137136135134 1491481414-614 1-915-815-715-6 16-916-810-7 179178 189
18-9 11-9 12-9 13-9 14-9 15-9 16-9 17-9 17-8 11-8 12-8 13-8 14-8 15-8 16-8 16-7 11-7 12-7 13-7 14-7 15-7 15-6 11-6 12-6 13-6 14-6 14-5 11-5 12-5 13-5 13-4 11-4 12-4 12-3 11-3 11-2 =2 =3 =4 =5 =6 =7 =8 =9 20以内退位减法表