數題數學題

1)
4,5,8,17,44,?
5 - 4 = 30;
8 - 5 = 31;
17 - 8 = 32;
44 - 17 = 33;
44 + 34 = 125
2)
3,4,8,17,33,?
4 - 3 = 12;
8 - 4 = 22;
17 - 8 = 32;
33 - 17 = 42
33 + 52 = 58
3)
11,9,7,5,3,?
續個減二所以是1
4)
3,6,18,72,360,?
3 * 2 = 6;
6 * 3 = 18;
18 * 4 = 72;
72 * 5 = 360;
360 * 6 = 2160
5)
17 8 5 5; 17 + 8 = 5 * 5
13 7 5 4; 13 + 7 = 5 * 4
6 12 6 3; 6 + 12 = 6 * 3
10 6 4 ?; 10 + 6 = 4 * 4 (a)
a)4 b)5 c)6 d)7
6)
8 5 21; 8 - 5 = 2 + 1
35 32 12; 35 - 32 = 1 + 2
32 28 31; 32 - 28 = 3 + 1
4 ? 28; 4 - ? = 2 + 8
? = -6 (c)
a)3 b)-2 c)-6 d)48

1)4,5,8,17,44,?

Ans:125
5-4=1
8-5=3
17-8=9
44-17=27
1*3=3
3*3=9
9*3=27
27*3=81
44+81=125
2)3,4,8,17,33,?
Ans:58
4-3=1
8-4=4
17-8=9
33-17=16
1*1=1
2*2=4
3*3=9
4*4=16
5*5=25
33+25=58
3)11,9,7,5,3,?
Ans:1
11-9=2
9-7=2
7-5=2
5-3=2
3-1=2

4)3,6,18,72,360,?
Ans:2160
3*2=6
6*3=18
18*4=72
72*5=360
360*6=2160
5)
17 8 5 5
13 7 5 4
6 12 6 3
10 6 4 ?
Ans:a)
17+8=5*5
13+7=5*4
6+12=6*3
10+6=4*4
6)
8 5 21
35 32 12
32 28 31
4 ? 28
Ans:c)


8-5=2+1
35-32=1+2
32-28=3+1
4-(-6)=2+8

1.:2 2:3 3:4 4:5 !!6 12 6 3
10 6 4 ?

a)4 b)5 c)6 d)7



6)
8 5 21
35 32 12
32 28 31
4 ? 28