starter Set 40 Form Exercise

? → [+10] → 12

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Answer: 2

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

? → [-1] → 3

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Answer: 4

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

? → [-3] → 3

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Answer: 6

SubType
find-input
Rule
-3
Input
6
Output
3
Difficulty
starter

Input: 4 → [?] → 3, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
4
Output
3
Difficulty
starter

Input: 3 → [?] → 2, what is the rule?

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Answer: -1

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

Input: 10 → [×2] → ?

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Answer: 20

SubType
find-output
Rule
×2
Input
10
Output
20
Difficulty
starter

Input: 7 → [-1] → ?

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Answer: 6

SubType
find-output
Rule
-1
Input
7
Output
6
Difficulty
starter

? → [+5] → 10

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Answer: 5

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