hard Set 50 Form Exercise

Number Chain: 12 → x4 → +2 → -38 → -2 → +4 → ?

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Answer: 14

SubType
number-chain
Start
12
Steps
  • {"op":"x","operand":4}
  • {"op":"+","operand":2}
  • {"op":"-","operand":38}
  • {"op":"-","operand":2}
  • {"op":"+","operand":4}
Difficulty
hard

Number Chain: 3 → x3 → x4 → x2 → +6 → x2 → ?

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Answer: 156

SubType
number-chain
Start
3
Steps
  • {"op":"x","operand":3}
  • {"op":"x","operand":4}
  • {"op":"x","operand":2}
  • {"op":"+","operand":6}
  • {"op":"x","operand":2}
Difficulty
hard

Number Chain: 4 → -1 → +5 → x3 → +7 → +3 → ?

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Answer: 34

SubType
number-chain
Start
4
Steps
  • {"op":"-","operand":1}
  • {"op":"+","operand":5}
  • {"op":"x","operand":3}
  • {"op":"+","operand":7}
  • {"op":"+","operand":3}
Difficulty
hard

Number Chain: 10 → -6 → +7 → +4 → +3 → +11 → ?

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Answer: 29

SubType
number-chain
Start
10
Steps
  • {"op":"-","operand":6}
  • {"op":"+","operand":7}
  • {"op":"+","operand":4}
  • {"op":"+","operand":3}
  • {"op":"+","operand":11}
Difficulty
hard

Number Chain: 1 → x5 → +2 → -1 → -2 → -2 → ?

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Answer: 2

SubType
number-chain
Start
1
Steps
  • {"op":"x","operand":5}
  • {"op":"+","operand":2}
  • {"op":"-","operand":1}
  • {"op":"-","operand":2}
  • {"op":"-","operand":2}
Difficulty
hard

Number Chain: 6 → x3 → x4 → -24 → x4 → +12 → ?

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Answer: 204

SubType
number-chain
Start
6
Steps
  • {"op":"x","operand":3}
  • {"op":"x","operand":4}
  • {"op":"-","operand":24}
  • {"op":"x","operand":4}
  • {"op":"+","operand":12}
Difficulty
hard

Number Chain: 3 → +10 → x4 → +10 → +10 → +7 → ?

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Answer: 79

SubType
number-chain
Start
3
Steps
  • {"op":"+","operand":10}
  • {"op":"x","operand":4}
  • {"op":"+","operand":10}
  • {"op":"+","operand":10}
  • {"op":"+","operand":7}
Difficulty
hard

Number Chain: 8 → x4 → -29 → +3 → x2 → +6 → ?

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Answer: 18

SubType
number-chain
Start
8
Steps
  • {"op":"x","operand":4}
  • {"op":"-","operand":29}
  • {"op":"+","operand":3}
  • {"op":"x","operand":2}
  • {"op":"+","operand":6}
Difficulty
hard