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 = 6+73 = 14-10 = 0+64 = 34-9 = 94-7 = 40-6 = 5+86 = 75-6 = 41-6 = 18-9 = 72+9 = 1+60 = 94-5 = 73+7 = 2+32 = 84- = 76-2 = 5+13 = 15-3 = 85-2 = 64+5 = 21-6 = 23-2 = 53+9 = 66+5 = 6+85 = 54-1 = 69-7 = 16-5 = 49-4 = 4+17 = 34+7 = 35-5 = 96-4 = 11+2 = 96-7 = 21+6 = 18-6 = 58+6 = 6+57 = 27-9 = 99-7 = 2+44 = 87-8 = 8+19 = 12-2 = 9+30 = 80+9 = 58-1 = 10+53 = 8+30 = 89+1 = 93-2 = 5+78 = 30-6 = 89-6 = 97-9 = 30+40 = 2+30 = 74-2 = 3+49 = 一年级口算 二位数加减一位数 72-0 = 3+97 = 61-7 = 60-2 = 82+9 = 28+1 = 7+22 = 41+2 = 17+40 = 1+89 = 65-8 = 8+39 = 7+72 = 47+9 = 33+7 = 0+98 = 72-6 = 15+6 = 2+54 = 30-4 = 67-3 = 58+2 = 11+5 = 88-5 = 3+17 = 57+3 = 17-3 = 21+4 = 32-6 = 40+1 = 13-5 = 47-2 = 7+32 = 40-7 = 24-9 = 96-5 = 86-1 = 3+64 = 66+4 = 36-4 = 63-40 = 15-8 = 9+70 = 59-9 = 37-4 = 3+94 = 47+1 = 35-2 = 35-9 = 77+0 = 27-3 = 89-2 = 55+7 = 34+1 = 54+1 = 86-6 = 64-6 = 27+4 = 22+8 = 79+20 = 17+4 = 72-9 = 31-7 = 16-8 = 71-2 = 49-1 = 80+7 = 32+6 = 97+3 = 92-10 = 21+1 = 55-5 = 81-0 = 88-9 = 54-7 = 10-6 = 50-7 = 6+54 = 38-20 = 0+52 = 20-5 = 27+1 = 69+4 = 77-4 = 94+5 = 31-3 = 42-7 = 1+55 = 60-9 = 2+70 = 一年级口算 二位数加减一位数 63-5 = 35-0 = 2+52 = 2+33 = 24-5 = 56+7 = 13-6 = 61-8 = 59-7 = 43-9 =...