expert Set 100 Form Exercise

Input: 4 → [?] → 12, what is the rule?

Show answer

Answer: ×3

SubType
find-rule
Rule
×3
Input
4
Output
12
Difficulty
expert

Input: 6 → [-1] → ?

Show answer

Answer: 5

SubType
find-output
Rule
-1
Input
6
Output
5
Difficulty
expert

Input: 7 → [×2 + 1] → ?

Show answer

Answer: 15

SubType
find-output
Rule
×2 + 1
Input
7
Output
15
Difficulty
expert

Input: 2 → [?] → 4, what is the rule?

Show answer

Answer: ×2

SubType
find-rule
Rule
×2
Input
2
Output
4
Difficulty
expert

Input: 5 → [+2] → ?

Show answer

Answer: 7

SubType
find-output
Rule
+2
Input
5
Output
7
Difficulty
expert

Input: 7 → [?] → 19, what is the rule?

Show answer

Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
7
Output
19
Difficulty
expert

Input: 10 → [?] → 20, what is the rule?

Show answer

Answer: ×2

SubType
find-rule
Rule
×2
Input
10
Output
20
Difficulty
expert

Input: 8 → [×2 + 1] → ?

Show answer

Answer: 17

SubType
find-output
Rule
×2 + 1
Input
8
Output
17
Difficulty
expert