2位数加减法计算题 100道 用时： 错误： 48 ＋ 14 = 80 － 25 = 27 ＋ 58 = 81 － 28 = 50 － 45 = 34 ＋ 37 = 26 ＋ 36 = 67 － 58 = 27 ＋ 45 = 48 67 ＋ 27 = 74 83 － 35 = 58 14 ＋ 67 = 37 27 ＋ 38 = 35 51 － 44 = 25 13 ＋ 48 = 17 38 ＋ 44 = 40 73 － 34 = 81 80 － 46 = 27 ＋ 27 = 82 － 17 = 70 ＋ 14 = 82 ＋ 38 = 68 ＋ 36 = 85 ＋ 18 = 18 ＋ 74 = 42 － 26 = 24 － 78 = 45 ＋ 25 = 15 － 65 = 50 － 51 = 42 － 17 = 67 ＋ 24 = 34 － 56 = 38 ＋ 13 = 41 － 28 = 66 － 18 = 26 ＋ 36 = 61 ＋ 68 = 66 － 26 = － 15 = ＋ 24 = ＋ 17 = ＋ 56 = － 13 = － 28 = ＋ 46 = － 47 = ＋ 18 = 80 － 76 = 16 ＋ 68 = 83 － 28 = 28 ＋ 44 = 80 － 28 = 72 － 17 = 53 － 34 = 28 ＋ 13 = 53 － 46 = 66 － 27 = 80 － 63 = 52 － 28 = 43 － 34 = 84 46 ＋ 38 = 38 63 － 48 = 44 87 － 18 = 46 18 ＋ 73 = 34 80 － 44 = 76 51 － 28 = 17 24 ＋ 47 = 43 72 － 46 = 82 28 ＋ 56 = 71 － 37 = 24 ＋ 27 = 75 ＋ 17 = 30 ＋ 25 = 13 ＋ 57 = 61 ＋ 18 = 48 ＋ 67 = 75 － 17 = － 14 = 41 － 16 = 82 ＋ 18 = 25 ＋ 18 = 37 － 24 = 14 ＋ 28 = 77 － 28 = 85 ＋ 43 = 37 － 18 = 55 － 48 = 46 － 24 = 62 － 37 = 44 ＋ 68 = ＋ 25 = ＋ 47 = － 38 = － 18 = ＋ 18 = ＋ 36 = － 38 = － 46 = ＋ 48 =
