hard Set 96 Form Exercise

Number Chain: 10 → -2 → x4 → -21 → +3 → x4 → ?

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Answer: 56

SubType
number-chain
Start
10
Steps
  • {"op":"-","operand":2}
  • {"op":"x","operand":4}
  • {"op":"-","operand":21}
  • {"op":"+","operand":3}
  • {"op":"x","operand":4}
Difficulty
hard

Number Chain: 5 → +4 → x4 → +12 → +2 → x3 → ?

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Answer: 150

SubType
number-chain
Start
5
Steps
  • {"op":"+","operand":4}
  • {"op":"x","operand":4}
  • {"op":"+","operand":12}
  • {"op":"+","operand":2}
  • {"op":"x","operand":3}
Difficulty
hard

Number Chain: 3 → -2 → x5 → x4 → x5 → x5 → ?

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Answer: 500

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

Number Chain: 12 → -5 → +6 → +12 → +10 → -3 → ?

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Answer: 32

SubType
number-chain
Start
12
Steps
  • {"op":"-","operand":5}
  • {"op":"+","operand":6}
  • {"op":"+","operand":12}
  • {"op":"+","operand":10}
  • {"op":"-","operand":3}
Difficulty
hard

Number Chain: 2 → -1 → x2 → +8 → -3 → +5 → ?

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Answer: 12

SubType
number-chain
Start
2
Steps
  • {"op":"-","operand":1}
  • {"op":"x","operand":2}
  • {"op":"+","operand":8}
  • {"op":"-","operand":3}
  • {"op":"+","operand":5}
Difficulty
hard

Number Chain: 1 → x2 → -1 → +12 → +2 → x4 → ?

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Answer: 60

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

Number Chain: 11 → +3 → x2 → x5 → +10 → +7 → ?

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Answer: 157

SubType
number-chain
Start
11
Steps
  • {"op":"+","operand":3}
  • {"op":"x","operand":2}
  • {"op":"x","operand":5}
  • {"op":"+","operand":10}
  • {"op":"+","operand":7}
Difficulty
hard

Number Chain: 9 → -7 → +10 → -10 → x4 → x3 → ?

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Answer: 24

SubType
number-chain
Start
9
Steps
  • {"op":"-","operand":7}
  • {"op":"+","operand":10}
  • {"op":"-","operand":10}
  • {"op":"x","operand":4}
  • {"op":"x","operand":3}
Difficulty
hard