倒计时:
150秒
剩余: 50题
成绩: 0分
关卡: 1
3 + 3 = 6
2 + 2 = 4
7 + 2 = 9
1 + 0 = 1
6 + 0 = 6
8 + 6 = 14
6 + 6 = 12
9 + 6 = 15
7 + 3 = 10
4 + 4 = 8
7 + 1 = 8
2 + 2 = 4
6 + 4 = 10
5 + 3 = 8
3 + 1 = 4
7 + 6 = 13
9 + 7 = 16
4 + 0 = 4
7 + 0 = 7
9 + 8 = 17
6 + 1 = 7
8 + 5 = 13
8 + 4 = 12
5 + 3 = 8
5 + 3 = 8
3 + 0 = 3
8 + 7 = 15
8 + 8 = 16
4 + 2 = 6
3 + 0 = 3
7 + 5 = 12
8 + 6 = 14
7 + 2 = 9
9 + 3 = 12
4 + 1 = 5
1 + 0 = 1
8 + 4 = 12
5 + 4 = 9
5 + 4 = 9
6 + 5 = 11
4 + 3 = 7
8 + 0 = 8
6 + 0 = 6
7 + 6 = 13
3 + 2 = 5
4 + 1 = 5
9 + 3 = 12
7 + 3 = 10
8 + 3 = 11
1 + 0 = 1
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。