一年级口算 二位数加减一位数 30-2 = 31-4 = 95+4 = 74+6 = 21-2 = 8+50 = 27-8 = 9+48 = 92-4 = 77-1 = 0+92 = 13-9 = 8+26 = 10+20 = 42-8 = 4+63 = 49-3 = 19-3 = 16+5 = 67+2 = 41+7 = 22-2 = 84+8 = 3+20 = 3+37 = 57-3 = 73-7 = 42+1 = 65+1 ...
时间:2025-02-01 02:23栏目:行业资料