medium Set 18 Form Exercise

? → [+4 ×2] → 12

Show answer

Answer: 2

SubType
find-input
Rule
+4 ×2
Input
2
Output
12
Difficulty
medium

? → [+2] → 5

Show answer

Answer: 3

SubType
find-input
Rule
+2
Input
3
Output
5
Difficulty
medium

? → [×2] → 6

Show answer

Answer: 3

SubType
find-input
Rule
×2
Input
3
Output
6
Difficulty
medium

Input: 5 → [?] → 15, what is the rule?

Show answer

Answer: +10

SubType
find-rule
Rule
+10
Input
5
Output
15
Difficulty
medium

Input: 8 → [?] → 24, what is the rule?

Show answer

Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
8
Output
24
Difficulty
medium

? → [-3] → 3

Show answer

Answer: 6

SubType
find-input
Rule
-3
Input
6
Output
3
Difficulty
medium

Input: 5 → [-3] → ?

Show answer

Answer: 2

SubType
find-output
Rule
-3
Input
5
Output
2
Difficulty
medium

Input: 1 → [×2 + 3] → ?

Show answer

Answer: 5

SubType
find-output
Rule
×2 + 3
Input
1
Output
5
Difficulty
medium