easy Set 100 Form Exercise

? → [×3] → 15

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Answer: 5

SubType
find-input
Rule
×3
Input
5
Output
15
Difficulty
easy

Input: 2 → [×5] → ?

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Answer: 10

SubType
find-output
Rule
×5
Input
2
Output
10
Difficulty
easy

? → [+5] → 10

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Answer: 5

SubType
find-input
Rule
+5
Input
5
Output
10
Difficulty
easy

? → [×5] → 25

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Answer: 5

SubType
find-input
Rule
×5
Input
5
Output
25
Difficulty
easy

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

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Answer: ×3

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

? → [+10] → 19

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Answer: 9

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

Input: 3 → [?] → 2, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
3
Output
2
Difficulty
easy

? → [+5] → 9

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Answer: 4

SubType
find-input
Rule
+5
Input
4
Output
9
Difficulty
easy