hard Set 36 Form Exercise

Number Chain: 6 → +7 → x4 → x2 → x3 → -264 → ?

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Answer: 48

SubType
number-chain
Start
6
Steps
  • {"op":"+","operand":7}
  • {"op":"x","operand":4}
  • {"op":"x","operand":2}
  • {"op":"x","operand":3}
  • {"op":"-","operand":264}
Difficulty
hard

Number Chain: 8 → -3 → -1 → -3 → -1 → +7 → ?

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Answer: 7

SubType
number-chain
Start
8
Steps
  • {"op":"-","operand":3}
  • {"op":"-","operand":1}
  • {"op":"-","operand":3}
  • {"op":"-","operand":1}
  • {"op":"+","operand":7}
Difficulty
hard

Number Chain: 11 → x2 → -4 → -14 → x4 → x5 → ?

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Answer: 80

SubType
number-chain
Start
11
Steps
  • {"op":"x","operand":2}
  • {"op":"-","operand":4}
  • {"op":"-","operand":14}
  • {"op":"x","operand":4}
  • {"op":"x","operand":5}
Difficulty
hard

Number Chain: 3 → -1 → -1 → +9 → x4 → -38 → ?

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Answer: 2

SubType
number-chain
Start
3
Steps
  • {"op":"-","operand":1}
  • {"op":"-","operand":1}
  • {"op":"+","operand":9}
  • {"op":"x","operand":4}
  • {"op":"-","operand":38}
Difficulty
hard

Number Chain: 5 → +12 → x3 → x5 → +4 → +5 → ?

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Answer: 264

SubType
number-chain
Start
5
Steps
  • {"op":"+","operand":12}
  • {"op":"x","operand":3}
  • {"op":"x","operand":5}
  • {"op":"+","operand":4}
  • {"op":"+","operand":5}
Difficulty
hard

Number Chain: 2 → -1 → -1 → -1 → +4 → x4 → ?

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Answer: 12

SubType
number-chain
Start
2
Steps
  • {"op":"-","operand":1}
  • {"op":"-","operand":1}
  • {"op":"-","operand":1}
  • {"op":"+","operand":4}
  • {"op":"x","operand":4}
Difficulty
hard

Number Chain: 4 → x4 → x4 → +12 → -51 → x2 → ?

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Answer: 50

SubType
number-chain
Start
4
Steps
  • {"op":"x","operand":4}
  • {"op":"x","operand":4}
  • {"op":"+","operand":12}
  • {"op":"-","operand":51}
  • {"op":"x","operand":2}
Difficulty
hard

Number Chain: 4 → -1 → -1 → x3 → -4 → -1 → ?

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Answer: 1

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