倒计时:
150秒
剩余: 50题
成绩: 0分
关卡: 1
9 + 0 = 9
8 + 4 = 12
8 + 0 = 8
2 + 0 = 2
1 + 1 = 2
7 + 6 = 13
8 + 8 = 16
6 + 2 = 8
3 + 1 = 4
8 + 7 = 15
1 + 0 = 1
4 + 3 = 7
1 + 0 = 1
5 + 0 = 5
8 + 8 = 16
9 + 7 = 16
8 + 1 = 9
2 + 1 = 3
7 + 4 = 11
9 + 4 = 13
8 + 8 = 16
8 + 2 = 10
7 + 2 = 9
6 + 1 = 7
6 + 1 = 7
5 + 5 = 10
1 + 0 = 1
9 + 3 = 12
5 + 1 = 6
9 + 2 = 11
9 + 7 = 16
5 + 3 = 8
9 + 7 = 16
7 + 5 = 12
9 + 3 = 12
8 + 0 = 8
1 + 0 = 1
9 + 9 = 18
6 + 4 = 10
5 + 5 = 10
8 + 4 = 12
8 + 5 = 13
7 + 4 = 11
6 + 0 = 6
9 + 2 = 11
4 + 0 = 4
4 + 2 = 6
2 + 1 = 3
7 + 1 = 8
4 + 0 = 4
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。