easy Set 86 Form Exercise

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

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Answer: +10

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

Input: 4 → [-3] → ?

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Answer: 1

SubType
find-output
Rule
-3
Input
4
Output
1
Difficulty
normal

Input: 5 → [?] → 7, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
5
Output
7
Difficulty
normal

Input: 8 → [-3] → ?

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Answer: 5

SubType
find-output
Rule
-3
Input
8
Output
5
Difficulty
normal

Input: 10 → [+5] → ?

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Answer: 15

SubType
find-output
Rule
+5
Input
10
Output
15
Difficulty
normal

? → [+10] → 13

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Answer: 3

SubType
find-input
Rule
+10
Input
3
Output
13
Difficulty
normal

? → [-1] → 3

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Answer: 4

SubType
find-input
Rule
-1
Input
4
Output
3
Difficulty
normal

Input: 8 → [+10] → ?

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Answer: 18

SubType
find-output
Rule
+10
Input
8
Output
18
Difficulty
normal