hard Set 16 Form Exercise

Number Chain: 8 → +6 → x2 → +1 → +1 → x5 → ?

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Answer: 150

SubType
number-chain
Start
8
Steps
  • {"op":"+","operand":6}
  • {"op":"x","operand":2}
  • {"op":"+","operand":1}
  • {"op":"+","operand":1}
  • {"op":"x","operand":5}
Difficulty
hard

Number Chain: 6 → x2 → +12 → -12 → x3 → x4 → ?

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Answer: 144

SubType
number-chain
Start
6
Steps
  • {"op":"x","operand":2}
  • {"op":"+","operand":12}
  • {"op":"-","operand":12}
  • {"op":"x","operand":3}
  • {"op":"x","operand":4}
Difficulty
hard

Number Chain: 11 → x5 → x5 → x4 → -730 → -132 → ?

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Answer: 238

SubType
number-chain
Start
11
Steps
  • {"op":"x","operand":5}
  • {"op":"x","operand":5}
  • {"op":"x","operand":4}
  • {"op":"-","operand":730}
  • {"op":"-","operand":132}
Difficulty
hard

Number Chain: 9 → -3 → +8 → +11 → -23 → +1 → ?

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Answer: 3

SubType
number-chain
Start
9
Steps
  • {"op":"-","operand":3}
  • {"op":"+","operand":8}
  • {"op":"+","operand":11}
  • {"op":"-","operand":23}
  • {"op":"+","operand":1}
Difficulty
hard

Number Chain: 3 → x4 → +10 → -4 → x2 → -34 → ?

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Answer: 2

SubType
number-chain
Start
3
Steps
  • {"op":"x","operand":4}
  • {"op":"+","operand":10}
  • {"op":"-","operand":4}
  • {"op":"x","operand":2}
  • {"op":"-","operand":34}
Difficulty
hard

Number Chain: 10 → x3 → x5 → +2 → x3 → +5 → ?

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Answer: 461

SubType
number-chain
Start
10
Steps
  • {"op":"x","operand":3}
  • {"op":"x","operand":5}
  • {"op":"+","operand":2}
  • {"op":"x","operand":3}
  • {"op":"+","operand":5}
Difficulty
hard

Number Chain: 10 → -8 → x2 → +11 → -14 → -1 → ?

SubType
number-chain
Start
10
Steps
  • {"op":"-","operand":8}
  • {"op":"x","operand":2}
  • {"op":"+","operand":11}
  • {"op":"-","operand":14}
  • {"op":"-","operand":1}
Difficulty
hard

Number Chain: 2 → +6 → x5 → +4 → x3 → -24 → ?

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Answer: 108

SubType
number-chain
Start
2
Steps
  • {"op":"+","operand":6}
  • {"op":"x","operand":5}
  • {"op":"+","operand":4}
  • {"op":"x","operand":3}
  • {"op":"-","operand":24}
Difficulty
hard