What is the next number?
5, 10, 15 ...
20
9, 16, 23 ...
Add 7
? , 5, 10, 15 ...
0
10, 20, ? , 40, 50 ...
30
5, 4, 3 ...
2, 1 and 0
12, 18, 24 ...
30
5, 50, 500 ...
multiply by 10
? , 45, 50, 55, 60 ...
40
3, 6, ?, 12, 15 ...
9
10, 12, 14 ...
16, 18 and 20
-7, -14, -21 ...
-28
4, ?, 10, 13 ...
add 3
1
100, 99, ? , 97 ...
98
2, 4, 8 ...
16, 32 and 64
1, 10, 100 ...
1000
-2, 0, 2, 4 ...
Add 2
? , 21, 28, 35, 42 ...
14
2, 20, ? , 2000 ...
200
2048, 1024, 512, 256, 128, 64, 32, 16 ...
8, 4 and 2
2, 4, 8 ...
16
48, 24, 12, 6, 3 ...
Divide by 2
? , 4, 8, 16 ...
2
100, ? , 25, 12.5 ...
50
Start with 1 and multiply by 1000
1000 (one thousand) then 1000,000 (one million) then 1,000,000,000 (one billion)