hard Set 57 Form Exercise

Number Chain: 1 → x4 → x3 → x3 → x5 → x3 → ?

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Answer: 540

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

Number Chain: 1 → x3 → x3 → x4 → -22 → x3 → ?

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Answer: 42

SubType
number-chain
Start
1
Steps
  • {"op":"x","operand":3}
  • {"op":"x","operand":3}
  • {"op":"x","operand":4}
  • {"op":"-","operand":22}
  • {"op":"x","operand":3}
Difficulty
hard

Number Chain: 6 → x3 → -7 → -5 → +4 → +3 → ?

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Answer: 13

SubType
number-chain
Start
6
Steps
  • {"op":"x","operand":3}
  • {"op":"-","operand":7}
  • {"op":"-","operand":5}
  • {"op":"+","operand":4}
  • {"op":"+","operand":3}
Difficulty
hard

Number Chain: 12 → x3 → +9 → -21 → x4 → -67 → ?

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Answer: 29

SubType
number-chain
Start
12
Steps
  • {"op":"x","operand":3}
  • {"op":"+","operand":9}
  • {"op":"-","operand":21}
  • {"op":"x","operand":4}
  • {"op":"-","operand":67}
Difficulty
hard

Number Chain: 4 → +12 → -3 → x5 → +12 → +5 → ?

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Answer: 82

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

Number Chain: 6 → +10 → +9 → -14 → -5 → x2 → ?

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Answer: 12

SubType
number-chain
Start
6
Steps
  • {"op":"+","operand":10}
  • {"op":"+","operand":9}
  • {"op":"-","operand":14}
  • {"op":"-","operand":5}
  • {"op":"x","operand":2}
Difficulty
hard

Number Chain: 4 → +12 → x4 → x4 → x2 → x3 → ?

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Answer: 1536

SubType
number-chain
Start
4
Steps
  • {"op":"+","operand":12}
  • {"op":"x","operand":4}
  • {"op":"x","operand":4}
  • {"op":"x","operand":2}
  • {"op":"x","operand":3}
Difficulty
hard

Number Chain: 1 → -1 → -1 → -1 → x3 → x5 → ?

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Answer: -30

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