easy Set 83 Form Exercise

? → [-1] → 1

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Answer: 2

SubType
find-input
Rule
-1
Input
2
Output
1
Difficulty
easy

Input: 6 → [?] → 16, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
6
Output
16
Difficulty
easy

Input: 4 → [×3] → ?

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Answer: 12

SubType
find-output
Rule
×3
Input
4
Output
12
Difficulty
easy

? → [+10] → 20

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Answer: 10

SubType
find-input
Rule
+10
Input
10
Output
20
Difficulty
easy

Input: 10 → [?] → 30, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
10
Output
30
Difficulty
easy

? → [+2] → 12

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Answer: 10

SubType
find-input
Rule
+2
Input
10
Output
12
Difficulty
easy

? → [+10] → 11

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Answer: 1

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

Input: 7 → [×3] → ?

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Answer: 21

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