hard Set 29 Form Exercise

Number Chain: 5 → x4 → +4 → +9 → -31 → -1 → ?

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Answer: 1

SubType
number-chain
Start
5
Steps
  • {"op":"x","operand":4}
  • {"op":"+","operand":4}
  • {"op":"+","operand":9}
  • {"op":"-","operand":31}
  • {"op":"-","operand":1}
Difficulty
hard

Number Chain: 4 → -2 → +11 → +3 → +1 → -14 → ?

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Answer: 3

SubType
number-chain
Start
4
Steps
  • {"op":"-","operand":2}
  • {"op":"+","operand":11}
  • {"op":"+","operand":3}
  • {"op":"+","operand":1}
  • {"op":"-","operand":14}
Difficulty
hard

Number Chain: 5 → -2 → +3 → x2 → +6 → x2 → ?

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Answer: 36

SubType
number-chain
Start
5
Steps
  • {"op":"-","operand":2}
  • {"op":"+","operand":3}
  • {"op":"x","operand":2}
  • {"op":"+","operand":6}
  • {"op":"x","operand":2}
Difficulty
hard

Number Chain: 11 → +5 → +11 → x5 → -35 → +6 → ?

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Answer: 106

SubType
number-chain
Start
11
Steps
  • {"op":"+","operand":5}
  • {"op":"+","operand":11}
  • {"op":"x","operand":5}
  • {"op":"-","operand":35}
  • {"op":"+","operand":6}
Difficulty
hard

Number Chain: 9 → -6 → x3 → x4 → +12 → x3 → ?

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Answer: 144

SubType
number-chain
Start
9
Steps
  • {"op":"-","operand":6}
  • {"op":"x","operand":3}
  • {"op":"x","operand":4}
  • {"op":"+","operand":12}
  • {"op":"x","operand":3}
Difficulty
hard

Number Chain: 3 → +2 → +8 → -2 → -4 → -1 → ?

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Answer: 6

SubType
number-chain
Start
3
Steps
  • {"op":"+","operand":2}
  • {"op":"+","operand":8}
  • {"op":"-","operand":2}
  • {"op":"-","operand":4}
  • {"op":"-","operand":1}
Difficulty
hard

Number Chain: 6 → x4 → -4 → x5 → -24 → x3 → ?

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Answer: 228

SubType
number-chain
Start
6
Steps
  • {"op":"x","operand":4}
  • {"op":"-","operand":4}
  • {"op":"x","operand":5}
  • {"op":"-","operand":24}
  • {"op":"x","operand":3}
Difficulty
hard

Number Chain: 12 → x4 → +5 → +4 → x3 → +5 → ?

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Answer: 176

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