hard Set 23 Form Exercise

Number Chain: 11 → -10 → +4 → -1 → x5 → -17 → ?

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Answer: 3

SubType
number-chain
Start
11
Steps
  • {"op":"-","operand":10}
  • {"op":"+","operand":4}
  • {"op":"-","operand":1}
  • {"op":"x","operand":5}
  • {"op":"-","operand":17}
Difficulty
hard

Number Chain: 12 → x5 → +1 → +5 → +8 → x4 → ?

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Answer: 296

SubType
number-chain
Start
12
Steps
  • {"op":"x","operand":5}
  • {"op":"+","operand":1}
  • {"op":"+","operand":5}
  • {"op":"+","operand":8}
  • {"op":"x","operand":4}
Difficulty
hard

Number Chain: 2 → -1 → +12 → -10 → x4 → +5 → ?

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Answer: 17

SubType
number-chain
Start
2
Steps
  • {"op":"-","operand":1}
  • {"op":"+","operand":12}
  • {"op":"-","operand":10}
  • {"op":"x","operand":4}
  • {"op":"+","operand":5}
Difficulty
hard

Number Chain: 9 → +9 → x4 → x3 → -184 → +2 → ?

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Answer: 34

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":9}
  • {"op":"x","operand":4}
  • {"op":"x","operand":3}
  • {"op":"-","operand":184}
  • {"op":"+","operand":2}
Difficulty
hard

Number Chain: 9 → x4 → +10 → +10 → -3 → x5 → ?

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Answer: 265

SubType
number-chain
Start
9
Steps
  • {"op":"x","operand":4}
  • {"op":"+","operand":10}
  • {"op":"+","operand":10}
  • {"op":"-","operand":3}
  • {"op":"x","operand":5}
Difficulty
hard

Number Chain: 3 → -2 → +6 → x3 → +10 → +7 → ?

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Answer: 38

SubType
number-chain
Start
3
Steps
  • {"op":"-","operand":2}
  • {"op":"+","operand":6}
  • {"op":"x","operand":3}
  • {"op":"+","operand":10}
  • {"op":"+","operand":7}
Difficulty
hard

Number Chain: 1 → x4 → -3 → +1 → x3 → +10 → ?

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Answer: 16

SubType
number-chain
Start
1
Steps
  • {"op":"x","operand":4}
  • {"op":"-","operand":3}
  • {"op":"+","operand":1}
  • {"op":"x","operand":3}
  • {"op":"+","operand":10}
Difficulty
hard

Number Chain: 11 → x3 → +4 → +9 → x5 → -68 → ?

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Answer: 162

SubType
number-chain
Start
11
Steps
  • {"op":"x","operand":3}
  • {"op":"+","operand":4}
  • {"op":"+","operand":9}
  • {"op":"x","operand":5}
  • {"op":"-","operand":68}
Difficulty
hard