expert Set 97 Form Exercise

Input: 7 → [?] → 22, what is the rule?

Show answer

Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
7
Output
22
Difficulty
expert

Input: 3 → [-1] → ?

Show answer

Answer: 2

SubType
find-output
Rule
-1
Input
3
Output
2
Difficulty
expert

? → [+4 ×2] → 20

Show answer

Answer: 6

SubType
find-input
Rule
+4 ×2
Input
6
Output
20
Difficulty
expert

Input: 9 → [×3] → ?

Show answer

Answer: 27

SubType
find-output
Rule
×3
Input
9
Output
27
Difficulty
expert

Input: 7 → [+10] → ?

Show answer

Answer: 17

SubType
find-output
Rule
+10
Input
7
Output
17
Difficulty
expert

Input: 2 → [?] → 7, what is the rule?

Show answer

Answer: +5

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

? → [×5] → 40

Show answer

Answer: 8

SubType
find-input
Rule
×5
Input
8
Output
40
Difficulty
expert

Input: 3 → [-3] → ?

SubType
find-output
Rule
-3
Input
3
Output
0
Difficulty
expert