m*u
2 楼
是必须的,还是推荐人愿意附就附,不给也就算了的?
菜鸟问题,请多关照。
菜鸟问题,请多关照。
m*d
3 楼
S*s
4 楼
B*1
8 楼
The last one is easy: 1000-999=1
B*1
9 楼
19: 7*6/2 = 21
B*1
10 楼
18: 1, 2, 3, (16-6)=10. Answer is 10.
Okay, I will stop.
Okay, I will stop.
B*1
14 楼
4*5 - 11 = 9
3*8 - 15 = 9
3*?? - 13 = 14: ?? = 9
For this question, if the student finds that there are three 9's already in
the question, he or she could just guesse that the answer should be 9!
In addition, this question is a variant of the card game 24. It is a card
game 9 or card game 14 with more cards (14, 15,. . . maybe up to 20).
【在 S*******s 的大作中提到】
: do the no 9
3*8 - 15 = 9
3*?? - 13 = 14: ?? = 9
For this question, if the student finds that there are three 9's already in
the question, he or she could just guesse that the answer should be 9!
In addition, this question is a variant of the card game 24. It is a card
game 9 or card game 14 with more cards (14, 15,. . . maybe up to 20).
【在 S*******s 的大作中提到】
: do the no 9
B*1
15 楼
If anyone should give it a try, it might be one of the posters here who
wanted to improver some kind of intelligence . . .
wanted to improver some kind of intelligence . . .
S*s
16 楼
it is the hardest. all others can be solved by addition/substation.
in
【在 B******1 的大作中提到】
: 4*5 - 11 = 9
: 3*8 - 15 = 9
: 3*?? - 13 = 14: ?? = 9
: For this question, if the student finds that there are three 9's already in
: the question, he or she could just guesse that the answer should be 9!
: In addition, this question is a variant of the card game 24. It is a card
: game 9 or card game 14 with more cards (14, 15,. . . maybe up to 20).
in
【在 B******1 的大作中提到】
: 4*5 - 11 = 9
: 3*8 - 15 = 9
: 3*?? - 13 = 14: ?? = 9
: For this question, if the student finds that there are three 9's already in
: the question, he or she could just guesse that the answer should be 9!
: In addition, this question is a variant of the card game 24. It is a card
: game 9 or card game 14 with more cards (14, 15,. . . maybe up to 20).
w*r
19 楼
你们小的时候都没有参加过这个吗?全国赛的题是很简单的,我们是市里的比赛更难一
些。
些。
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