starter Set 72 Form Exercise

? → [+5] → 13

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Answer: 8

SubType
find-input
Rule
+5
Input
8
Output
13
Difficulty
starter

? → [+5] → 6

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Answer: 1

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

Input: 10 → [?] → 9, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
10
Output
9
Difficulty
starter

Input: 5 → [-3] → ?

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Answer: 2

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

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

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Answer: ×3

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

Input: 5 → [×5] → ?

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Answer: 25

SubType
find-output
Rule
×5
Input
5
Output
25
Difficulty
starter

Input: 9 → [?] → 18, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
9
Output
18
Difficulty
starter

Input: 4 → [?] → 6, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
4
Output
6
Difficulty
starter