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1、20以内的不进位加法,312,213,171,161,123,711,611,211,214,314,413,217,172,512,126,116,145,126,113,135,213,214,114,512,514,313,211,152,313,811,132,112,115,511,141,111,316,124,116,117,113,118,514,181,117,511,151,133,413,143,216,412,315,115,613,116,151,127,141,514,611,313,118,161,116,115,114,171,712,412,117,154,1
2、12,511,215,111,111,116,127,153,142,118,172,142,314,135,144,115,413,117,162,125,114,612,312,122,134,134,114,216,414,114,161,121,117,131,217,113,125,811,132,143,124,711,117,311,172,133,113,141,132,414,712,711,612,212,311,114,112,312,163,112,415,111,153,115,215,111,154,144,112,145,213,216,163,123,311,211,112,613,152,315,136,123,131,162,125,135,613,111,154,122,136,811,122,121,133,118,127,121,181,131,513,153,212,212,314,126,315,411,171,316,712,214,414,411,145,136,513,113,163,612,143,217,415,181,412,162,513,118,
