expert Set 78 Form Exercise

Input: 2 → [?] → 4, what is the rule?

Show answer

Answer: ×2

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

Input: 5 → [+5] → ?

Show answer

Answer: 10

SubType
find-output
Rule
+5
Input
5
Output
10
Difficulty
expert

Input: 6 → [?] → 15, what is the rule?

Show answer

Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
6
Output
15
Difficulty
expert

Input: 8 → [+5] → ?

Show answer

Answer: 13

SubType
find-output
Rule
+5
Input
8
Output
13
Difficulty
expert

? → [+5] → 10

Show answer

Answer: 5

SubType
find-input
Rule
+5
Input
5
Output
10
Difficulty
expert

Input: 8 → [?] → 5, what is the rule?

Show answer

Answer: -3

SubType
find-rule
Rule
-3
Input
8
Output
5
Difficulty
expert

Input: 10 → [?] → 23, what is the rule?

Show answer

Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
10
Output
23
Difficulty
expert

? → [+10] → 19

Show answer

Answer: 9

SubType
find-input
Rule
+10
Input
9
Output
19
Difficulty
expert