starter Set 60 Form Exercise

? → [×5] → 20

Show answer

Answer: 4

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

? → [+10] → 11

Show answer

Answer: 1

SubType
find-input
Rule
+10
Input
1
Output
11
Difficulty
starter

Input: 4 → [-3] → ?

Show answer

Answer: 1

SubType
find-output
Rule
-3
Input
4
Output
1
Difficulty
starter

? → [×3] → 30

Show answer

Answer: 10

SubType
find-input
Rule
×3
Input
10
Output
30
Difficulty
starter

Input: 10 → [×5] → ?

Show answer

Answer: 50

SubType
find-output
Rule
×5
Input
10
Output
50
Difficulty
starter

Input: 7 → [?] → 9, what is the rule?

Show answer

Answer: +2

SubType
find-rule
Rule
+2
Input
7
Output
9
Difficulty
starter

? → [-3] → 2

Show answer

Answer: 5

SubType
find-input
Rule
-3
Input
5
Output
2
Difficulty
starter

? → [×3] → 3

Show answer

Answer: 1

SubType
find-input
Rule
×3
Input
1
Output
3
Difficulty
starter