starter Set 99 Form Exercise

Input: 4 → [×2] → ?

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Answer: 8

SubType
find-output
Rule
×2
Input
4
Output
8
Difficulty
starter

? → [×3] → 3

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Answer: 1

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

? → [+5] → 6

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Answer: 1

SubType
find-input
Rule
+5
Input
1
Output
6
Difficulty
starter

? → [+5] → 14

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Answer: 9

SubType
find-input
Rule
+5
Input
9
Output
14
Difficulty
starter

? → [×5] → 45

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Answer: 9

SubType
find-input
Rule
×5
Input
9
Output
45
Difficulty
starter

Input: 2 → [?] → 6, what is the rule?

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Answer: ×3

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

Input: 4 → [+10] → ?

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Answer: 14

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

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

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Answer: ×3

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