hard Set 14 Form Exercise

Number Chain: 2 → x3 → -4 → +5 → +1 → +2 → ?

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Answer: 10

SubType
number-chain
Start
2
Steps
  • {"op":"x","operand":3}
  • {"op":"-","operand":4}
  • {"op":"+","operand":5}
  • {"op":"+","operand":1}
  • {"op":"+","operand":2}
Difficulty
hard

Number Chain: 7 → x5 → x3 → +10 → x5 → x4 → ?

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Answer: 2300

SubType
number-chain
Start
7
Steps
  • {"op":"x","operand":5}
  • {"op":"x","operand":3}
  • {"op":"+","operand":10}
  • {"op":"x","operand":5}
  • {"op":"x","operand":4}
Difficulty
hard

Number Chain: 2 → x2 → -3 → +5 → x3 → x2 → ?

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Answer: 36

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

Number Chain: 11 → -2 → -6 → x2 → +8 → x4 → ?

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Answer: 56

SubType
number-chain
Start
11
Steps
  • {"op":"-","operand":2}
  • {"op":"-","operand":6}
  • {"op":"x","operand":2}
  • {"op":"+","operand":8}
  • {"op":"x","operand":4}
Difficulty
hard

Number Chain: 1 → -1 → +9 → -2 → +4 → x4 → ?

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Answer: 44

SubType
number-chain
Start
1
Steps
  • {"op":"-","operand":1}
  • {"op":"+","operand":9}
  • {"op":"-","operand":2}
  • {"op":"+","operand":4}
  • {"op":"x","operand":4}
Difficulty
hard

Number Chain: 10 → +12 → -3 → x5 → x5 → x4 → ?

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Answer: 1900

SubType
number-chain
Start
10
Steps
  • {"op":"+","operand":12}
  • {"op":"-","operand":3}
  • {"op":"x","operand":5}
  • {"op":"x","operand":5}
  • {"op":"x","operand":4}
Difficulty
hard

Number Chain: 11 → -7 → x4 → +11 → +9 → +6 → ?

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Answer: 42

SubType
number-chain
Start
11
Steps
  • {"op":"-","operand":7}
  • {"op":"x","operand":4}
  • {"op":"+","operand":11}
  • {"op":"+","operand":9}
  • {"op":"+","operand":6}
Difficulty
hard

Number Chain: 5 → +5 → x2 → +12 → +4 → -19 → ?

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Answer: 17

SubType
number-chain
Start
5
Steps
  • {"op":"+","operand":5}
  • {"op":"x","operand":2}
  • {"op":"+","operand":12}
  • {"op":"+","operand":4}
  • {"op":"-","operand":19}
Difficulty
hard