starter Set 39 Form Exercise

Input: 1 → [?] → 3, what is the rule?

Show answer

Answer: +2

SubType
find-rule
Rule
+2
Input
1
Output
3
Difficulty
starter

Input: 7 → [?] → 21, what is the rule?

Show answer

Answer: ×3

SubType
find-rule
Rule
×3
Input
7
Output
21
Difficulty
starter

Input: 2 → [?] → 6, what is the rule?

Show answer

Answer: ×3

SubType
find-rule
Rule
×3
Input
2
Output
6
Difficulty
starter

Input: 3 → [-3] → ?

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

Input: 4 → [×5] → ?

Show answer

Answer: 20

SubType
find-output
Rule
×5
Input
4
Output
20
Difficulty
starter

Input: 3 → [×5] → ?

Show answer

Answer: 15

SubType
find-output
Rule
×5
Input
3
Output
15
Difficulty
starter

Input: 8 → [-1] → ?

Show answer

Answer: 7

SubType
find-output
Rule
-1
Input
8
Output
7
Difficulty
starter

Input: 4 → [+10] → ?

Show answer

Answer: 14

SubType
find-output
Rule
+10
Input
4
Output
14
Difficulty
starter