【5年級數學口算題100道】為了幫助五年級學生提高計算能力，鞏固基礎知識，我們整理了100道適合該年齡段的數學口算題。這些題目涵蓋加減乘除、分數、小數、單位換算等常見知識點，內容貼近課本，難度適中，適合課后練習或課堂檢測。
以下是這100道口算題的答案匯總表格，方便查閱和核對。
5年級數學口算題100道答案匯總表
| 題號 | 題目 | 答案 |
| 1 | 23 + 45 = | 68 |
| 2 | 78 - 39 = | 39 |
| 3 | 12 × 5 = | 60 |
| 4 | 84 ÷ 7 = | 12 |
| 5 | 0.6 + 0.4 = | 1.0 |
| 6 | 3.2 × 2 = | 6.4 |
| 7 | 1/2 + 1/4 = | 3/4 |
| 8 | 150 ÷ 5 = | 30 |
| 9 | 9 × 8 = | 72 |
| 10 | 100 - 67 = | 33 |
| 11 | 4.5 + 2.3 = | 6.8 |
| 12 | 1/3 + 2/3 = | 1 |
| 13 | 25 × 4 = | 100 |
| 14 | 18 ÷ 6 = | 3 |
| 15 | 0.7 × 10 = | 7.0 |
| 16 | 3.6 - 1.2 = | 2.4 |
| 17 | 2/5 + 1/5 = | 3/5 |
| 18 | 7 × 9 = | 63 |
| 19 | 120 ÷ 10 = | 12 |
| 20 | 0.5 + 0.5 = | 1.0 |
| 21 | 15 + 25 = | 40 |
| 22 | 90 - 45 = | 45 |
| 23 | 6 × 7 = | 42 |
| 24 | 36 ÷ 9 = | 4 |
| 25 | 2.5 × 2 = | 5.0 |
| 26 | 1/4 + 1/4 = | 1/2 |
| 27 | 100 ÷ 25 = | 4 |
| 28 | 1.8 + 0.2 = | 2.0 |
| 29 | 3/4 - 1/4 = | 1/2 |
| 30 | 8 × 7 = | 56 |
| 31 | 50 + 30 = | 80 |
| 32 | 60 - 25 = | 35 |
| 33 | 12 × 3 = | 36 |
| 34 | 48 ÷ 6 = | 8 |
| 35 | 0.9 + 0.1 = | 1.0 |
| 36 | 2.4 × 3 = | 7.2 |
| 37 | 1/2 - 1/4 = | 1/4 |
| 38 | 10 × 10 = | 100 |
| 39 | 75 ÷ 5 = | 15 |
| 40 | 0.3 + 0.7 = | 1.0 |
| 41 | 12 + 18 = | 30 |
| 42 | 90 - 60 = | 30 |
| 43 | 7 × 8 = | 56 |
| 44 | 63 ÷ 7 = | 9 |
| 45 | 1.5 × 4 = | 6.0 |
| 46 | 3/5 + 2/5 = | 1 |
| 47 | 200 ÷ 4 = | 50 |
| 48 | 0.8 + 0.2 = | 1.0 |
| 49 | 1/3 + 1/6 = | 1/2 |
| 50 | 9 × 6 = | 54 |
| 51 | 150 - 70 = | 80 |
| 52 | 16 ÷ 4 = | 4 |
| 53 | 2.2 + 1.8 = | 4.0 |
| 54 | 1/2 + 1/3 = | 5/6 |
| 55 | 12 × 6 = | 72 |
| 56 | 40 ÷ 8 = | 5 |
| 57 | 0.7 + 0.3 = | 1.0 |
| 58 | 3.6 ÷ 2 = | 1.8 |
| 59 | 2/3 + 1/3 = | 1 |
| 60 | 100 - 55 = | 45 |
| 61 | 7 × 7 = | 49 |
| 62 | 80 ÷ 10 = | 8 |
| 63 | 1.2 + 0.8 = | 2.0 |
| 64 | 3/4 - 1/2 = | 1/4 |
| 65 | 15 × 3 = | 45 |
| 66 | 90 ÷ 9 = | 10 |
| 67 | 0.5 + 0.5 = | 1.0 |
| 68 | 2.5 × 4 = | 10.0 |
| 69 | 1/2 + 1/3 = | 5/6 |
| 70 | 14 + 26 = | 40 |
| 71 | 65 - 35 = | 30 |
| 72 | 8 × 6 = | 48 |
| 73 | 54 ÷ 9 = | 6 |
| 74 | 1.6 + 0.4 = | 2.0 |
| 75 | 1/4 + 3/4 = | 1 |
| 76 | 10 × 9 = | 90 |
| 77 | 70 ÷ 7 = | 10 |
| 78 | 0.9 + 0.1 = | 1.0 |
| 79 | 3.2 × 2 = | 6.4 |
| 80 | 1/3 + 2/3 = | 1 |
| 81 | 25 + 35 = | 60 |
| 82 | 85 - 45 = | 40 |
| 83 | 9 × 7 = | 63 |
| 84 | 60 ÷ 5 = | 12 |
| 85 | 0.7 + 0.3 = | 1.0 |
| 86 | 2.8 ÷ 4 = | 0.7 |
| 87 | 1/2 + 1/6 = | 2/3 |
| 88 | 12 × 8 = | 96 |
| 89 | 75 ÷ 5 = | 15 |
| 90 | 0.6 + 0.4 = | 1.0 |
| 91 | 18 + 22 = | 40 |
| 92 | 90 - 50 = | 40 |
| 93 | 7 × 9 = | 63 |
| 94 | 48 ÷ 6 = | 8 |
| 95 | 1.5 + 0.5 = | 2.0 |
| 96 | 3/5 + 2/5 = | 1 |
| 97 | 100 ÷ 2 = | 50 |
| 98 | 0.2 + 0.8 = | 1.0 |
| 99 | 1/4 + 3/4 = | 1 |
| 100 | 10 × 7 = | 70 |
通過反復練習這些口算題，學生可以提升計算速度和準確率，同時增強對數學概念的理解。建議每天練習10-20題，逐步增加難度，形成良好的計算習慣。
