50以内加减混合计算题 100道 用时: 错误: 31 - 30 + 22 = 43 - 36 + 9 = 4 + 8 + 2 = 31 + 3 - 13 = 27 - 13 + 27 = 24 + 13 - 19 = 43 - 30 - 2 = 7 + 27 - 14 = 14 + 22 + 4 = 21 + 1 + 14 = 9 26 + 12 + 3 = 7 15 + 27 - 3 = 7 27 + 0 - 22 = 29 33 + 6 - 1 = 27 16 - 8 + 31 = 49 19 - 15 + 37 = 9 25 + 1 - 13 = 17 3 + 35 - 22 = 4 3 + 10 + 10 = 9 21 + 6 + 13 = 38 28 - 18 + 17 = 24 2 + 22 + 25 = 16 8 - 8 + 42 = 18 3 + 27 - 24 = 43 29 + 6 + 2 = 3 18 + 23 - 8 = 6 - 1 + 35 = 34 + 20 + 7 = 30 + 15 - 8 = 40 - 1 - 3 = 49 + 5 + 5 = 13 + 0 - 19 = 13 + 35 - 29 = 5 + 17 + 1 = 25 + 3 + 2 = 33 + 41 - 36 = 41 - 25 + 20 = 10 - 19 + 27 = 7 - 9 + 39 = 5 - 0 - 15 = 11 - 25 + 2 = 43 + 21 - 17 = 42 + 42 - 3 = 7 + 10 - 44 = + 19 - 7 = - 24 + 4 = - 17 - 27 = + 2 + 33 = - 10 + 21 = + 20 - 2 = - 6 - 12 = - 6 + 1 = - 5 - 31 = + 22 + 14 = + 22 + 15 = - 2 + 44 = + 16 - 6 = - 31 - 10 = - 4 - 23 = + 10 + 9 = 36 - 13 + 7 = 8 + 4 + 1 = 25 + 6 - 12 = 41 + 0 - 32 = 1 + 40 - 18 = 39 - 14 + 7 = 4 + 22 - 20 = 28 + 6 - 31 = 18 + 31 - 22 = 16 - 6 - 1 = 45 - 9 + 0 = 36 - 6 - 20 = 5 + 28 + 1 = 6 26 - 25 + 6 = 12 16 + 1 + 2 = 12 4 + 2 + 23 = 31 17 + 32 - 30 = 15 31 + 18 - 36 = 11 12 - 2 + 12 = 7 30 - 25 - 2 = 40 48 - 16 + 6 = 26 29 - 4 + 22 = - 2 + 17 = 31 + 7 + 11 = 0 - 6 - 3 = 36 + 13 - 37 = 45 - 14 + 17 = 1 + 13 - 18 = 48 + 14 + 28 = 37 - 10 - 9 = 19 + 20 + 4 = 0 - 24 + 43 = + 7 + 32 = + 0 - 4 = + 3 - 42 = + 22 + 3 = - 4 - 26 = + 9 - 11 = + 13 + 7 = + 1 + 24 = 本文来源:https://www.wddqw.com/doc/ac79481faff8941ea76e58fafab069dc51224734.html