20以內(nèi)破十法練習(xí)題-A4打印版

20破十法口訣：看大數(shù)，分出十，減小數(shù)，加剩數(shù)20破十法口訣：看大數(shù)，分出十，減小數(shù)，加剩數(shù)破十法：退位減法使用PAGE111-2= 13-8= 15-7= 16-9= 1215-6= 16-8= 17-9= 14-8= 1213-5= 11-3= 13-4= 14-6= 1611-4 14-5 18-9 13-8 1213-711-215-911-314-714-512-311-812-612-318-914-612-516-715-912-416-814-615-614-614-617-916-914-813-513-515-717-816-712-416-911-315-617-916-817-812-512-313-511-715-614-813-818-912-614-718-912-712-617-914-7= 16-9= 15-8= 16-9= 1815-6= 16-8= 11-9= 14-8= 1313-5= 12-9= 15-6= 14-7= 1117-8 14-7 15-9 13-8 1513-918-913-412-913-812-815-715-711-812-714-713-416-813-615-613-612-512-511-516-811-513-613-613-811-512-416-917-816-713-715-813-812-414-816-913-717-918-913-512-312-613-613-812-615-913-512-512-713-712-413-9= 15-9= 13-8= 16-7= 1814-6= 11-8= 17-9= 15-8= 1613-5= 12-9= 16-8= 14-6= 1114-8 17-8 12-9 13-7 1213-411-615-913-612-914-912-713-814-713-917-813-612-415-911-713-614-915-612-617-912-915-711-517-813-416-711-312-312-412-611-815-816-815-715-813-517-914-711-313-612-713-718-913-915-915-812-613-515-612-612-5= 16-7= 16-8= 11-7= 1814-6= 11-8= 17-9= 15-8= 1613-5= 12-9= 14-7= 15-6= 1215-8 17-8 18-9 13-7 1612-514-613-515-616-815-715-714-517-911-218-911-612-714-616-715-612-311-412-513-512-813-514-613-714-814-515-813-511-315-616-911-516-915-813-514-813-517-814-514-712-614-715-912-712-616-712-614-714-613-811-2= 13-8= 15-7= 16-9= 1715-9= 16-8= 17-9= 14-8= 1217-8= 11-3= 13-5= 15-6= 1811-4 17-8 14-9 13-8 1220破十法口訣：看大數(shù)，分出十，減小數(shù)，加剩數(shù)20破十法口訣：看大數(shù)，分出十，減小數(shù)，加剩數(shù)破十法：退位減法使用1012-915-613-613-911-211-714-915-713-514-713-613-414-812-715-616-812-812-516-913-513-411-913-911-414-911-616-711-512-613-715-814-815-916-816-912-612-512-614-712-715-913-813-813-615-912-811-512-711-512-620破十法口訣：看大數(shù)，分出十，減小數(shù)，加剩數(shù)20破十法口訣：看大數(shù)，分出十，減小數(shù)，加剩數(shù)破十法：退位減法使用PAGE1112-3= 13-7= 15-8= 12-9= 1714-6= 16-8= 12-4= 13-8= 1512-5= 17-9= 15-8= 14-7= 1113-7 12-6 14-9 11-5 1512-914-513-814-516-813-813-412-612-412-715-716-914-715-611-412-612-412-616-812-511-511-616-814-514-612-314-515-716-711-316-815-717-913-915-917-911-912-611-512-515-616-813-812-713-413-513-611-413-612-711-5= 15-9= 13-8= 12-4= 1414-6= 11-8= 12-9= 15-8= 1613-5= 15-9= 14-5= 12-6= 1114-8 17-8 12-3 11-7 1313-611-212-913-511-517-913-411-816-915-711-214-813-514-513-815-816-914-615-911-514-712-516-717-814-716-814-713-614-713-513-911-315-811-216-811-518-911-314-812-913-717-816-813-411-712-915-612-712-613-811-2= 13-7= 15-8= 16-9= 1714-6= 12-3= 12-4= 14-8= 1512-5= 12-9= 15-8= 14-7= 1114-7 12-6 14-9 11-3 1514-718-912-611-912-915-815-915-812-714-812-312-311-713-615-614-611-812-512-511-513-512-413-917-813-911-416-917-816-912-716-811-215-915-817-811-714-512-618-914-712-617-818-911-616-917-912-514-514-712-613-7= 14-9= 15-8= 16-9= 1815-6= 12-8= 17-9= 14-8= 1313-5= 12-9= 15-6= 17-8= 1112-6 14-7 11-9 13-6 1512-312-815-911-318-917-911-311-812-615-712-614-612-516-713-811-516-814-615-611-514-717-916-914-814-616-915-717-816-717-911-211-315-617-916-812-512-512-313-512-917-815-816-818-911-713-618-914-712-612-612-5= 15-7= 16-8= 11-6= 1814-6= 11-8= 17-9= 15-8= 1613-5= 16-9= 14-7= 15-6= 1215-8 12-6 18-9 11-7 1614-611-415-91