24点题目:使用数字 1 6 8 9,利用加减乘除、括号算出24。数字顺序可以任意调换,下面列出所有可行算式。
本题共有28个解(使用交换律变换后算一个解),
难度系数是2星
★★☆☆☆☆☆☆【
简单24点题目
】。
| 序号 |
题目:1,6,8,9 |
| 1 |
((9 + 1) + 6) + 8 |
| 2 |
((9 + 8) + 6) + 1 |
| 3 |
((9 + 1) + 8) + 6 |
| 4 |
((8 + 6) + 9) + 1 |
| 5 |
((8 + 6) + 1) + 9 |
| 6 |
((9 + 6) + 8) + 1 |
| 7 |
((8 + 1) + 6) + 9 |
| 8 |
((9 + 6) + 1) + 8 |
| 9 |
((9 + 8) + 1) + 6 |
| 10 |
(8 + 6) + (9 + 1) |
| 11 |
(8 × 1) × (9 − 6) |
| 12 |
(9 + (6 + 1)) + 8 |
| 13 |
(8 × (9 − 6)) × 1 |
| 14 |
(8 + (6 + 1)) + 9 |
| 15 |
(9 + 6) + (8 + 1) |
| 16 |
(9 + 8) + (6 + 1) |
| 17 |
(9 + (8 + 1)) + 6 |
| 18 |
8 × (9 − (6 × 1)) |
| 19 |
8 × ((9 − 6) × 1) |
| 20 |
8 × ((9 × 1) − 6) |
| 21 |
(8 × (9 − 6)) ÷ 1 |
| 22 |
(8 ÷ 1) × (9 − 6) |
| 23 |
8 × ((9 ÷ 1) − 6) |
| 24 |
8 × (9 − (6 ÷ 1)) |
| 25 |
8 × ((9 − 6) ÷ 1) |
| 26 |
(9 − 6) ÷ (1 ÷ 8) |
| 27 |
8 ÷ (1 − (6 ÷ 9)) |
| 28 |
8 ÷ (1 ÷ (9 − 6)) |