倒计时:
150秒
剩余: 50题
成绩: 0分
关卡: 1
4 + 1 = 5
6 + 6 = 12
8 + 5 = 13
5 + 1 = 6
4 + 3 = 7
5 + 1 = 6
7 + 5 = 12
8 + 1 = 9
9 + 6 = 15
7 + 3 = 10
0 + 0 = 0
2 + 2 = 4
7 + 4 = 11
4 + 0 = 4
5 + 3 = 8
2 + 0 = 2
6 + 5 = 11
7 + 0 = 7
8 + 4 = 12
6 + 1 = 7
4 + 2 = 6
5 + 1 = 6
3 + 1 = 4
4 + 3 = 7
5 + 2 = 7
9 + 9 = 18
8 + 0 = 8
2 + 0 = 2
9 + 3 = 12
9 + 3 = 12
8 + 5 = 13
9 + 9 = 18
9 + 3 = 12
8 + 0 = 8
9 + 3 = 12
4 + 3 = 7
9 + 5 = 14
6 + 5 = 11
9 + 2 = 11
2 + 0 = 2
7 + 2 = 9
4 + 1 = 5
9 + 7 = 16
2 + 2 = 4
4 + 4 = 8
5 + 3 = 8
1 + 0 = 1
7 + 7 = 14
4 + 1 = 5
9 + 8 = 17
通过解答算术题,输入正确的键盘数字来发射子弹,击退来袭的小怪兽。