hard Set 95 Form Exercise

Number Chain: 11 → -1 → x3 → x3 → +11 → +12 → ?

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Answer: 113

SubType
number-chain
Start
11
Steps
  • {"op":"-","operand":1}
  • {"op":"x","operand":3}
  • {"op":"x","operand":3}
  • {"op":"+","operand":11}
  • {"op":"+","operand":12}
Difficulty
hard

Number Chain: 1 → -1 → +8 → +1 → x2 → +1 → ?

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Answer: 19

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

Number Chain: 11 → +2 → +7 → -17 → -1 → +6 → ?

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Answer: 8

SubType
number-chain
Start
11
Steps
  • {"op":"+","operand":2}
  • {"op":"+","operand":7}
  • {"op":"-","operand":17}
  • {"op":"-","operand":1}
  • {"op":"+","operand":6}
Difficulty
hard

Number Chain: 11 → x4 → x3 → x3 → x4 → +10 → ?

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Answer: 1594

SubType
number-chain
Start
11
Steps
  • {"op":"x","operand":4}
  • {"op":"x","operand":3}
  • {"op":"x","operand":3}
  • {"op":"x","operand":4}
  • {"op":"+","operand":10}
Difficulty
hard

Number Chain: 12 → x4 → x4 → +1 → x3 → +2 → ?

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Answer: 581

SubType
number-chain
Start
12
Steps
  • {"op":"x","operand":4}
  • {"op":"x","operand":4}
  • {"op":"+","operand":1}
  • {"op":"x","operand":3}
  • {"op":"+","operand":2}
Difficulty
hard

Number Chain: 1 → +5 → -5 → -1 → -1 → -1 → ?

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Answer: -2

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

Number Chain: 12 → -2 → x2 → -12 → -3 → x5 → ?

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Answer: 25

SubType
number-chain
Start
12
Steps
  • {"op":"-","operand":2}
  • {"op":"x","operand":2}
  • {"op":"-","operand":12}
  • {"op":"-","operand":3}
  • {"op":"x","operand":5}
Difficulty
hard

Number Chain: 5 → -3 → x4 → -5 → -2 → -1 → ?

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