easy Set 99 Form Exercise

? → [+2] → 9

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Answer: 7

SubType
find-input
Rule
+2
Input
7
Output
9
Difficulty
easy

Input: 9 → [?] → 19, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
9
Output
19
Difficulty
easy

Input: 6 → [?] → 11, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
6
Output
11
Difficulty
easy

? → [-3] → 5

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Answer: 8

SubType
find-input
Rule
-3
Input
8
Output
5
Difficulty
easy

? → [×3] → 3

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Answer: 1

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

Input: 6 → [?] → 12, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
6
Output
12
Difficulty
easy

Input: 9 → [-1] → ?

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Answer: 8

SubType
find-output
Rule
-1
Input
9
Output
8
Difficulty
easy

Input: 1 → [×2] → ?

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Answer: 2

SubType
find-output
Rule
×2
Input
1
Output
2
Difficulty
easy