medium Set 97 Form Exercise

Number Chain: 1 → +10 → -7 → x3 → x2 → ?

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Answer: 24

SubType
number-chain
Start
1
Steps
  • {"op":"+","operand":10}
  • {"op":"-","operand":7}
  • {"op":"x","operand":3}
  • {"op":"x","operand":2}
Difficulty
medium

Number Chain: 10 → +10 → x5 → -9 → +4 → ?

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Answer: 95

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

Number Chain: 7 → -5 → -1 → -1 → x3 → ?

SubType
number-chain
Start
7
Steps
  • {"op":"-","operand":5}
  • {"op":"-","operand":1}
  • {"op":"-","operand":1}
  • {"op":"x","operand":3}
Difficulty
medium

Number Chain: 1 → x5 → x2 → -9 → x4 → ?

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Answer: 4

SubType
number-chain
Start
1
Steps
  • {"op":"x","operand":5}
  • {"op":"x","operand":2}
  • {"op":"-","operand":9}
  • {"op":"x","operand":4}
Difficulty
medium

Number Chain: 7 → +4 → -4 → x4 → x2 → ?

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Answer: 56

SubType
number-chain
Start
7
Steps
  • {"op":"+","operand":4}
  • {"op":"-","operand":4}
  • {"op":"x","operand":4}
  • {"op":"x","operand":2}
Difficulty
medium

Number Chain: 10 → +5 → +8 → -2 → x2 → ?

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Answer: 42

SubType
number-chain
Start
10
Steps
  • {"op":"+","operand":5}
  • {"op":"+","operand":8}
  • {"op":"-","operand":2}
  • {"op":"x","operand":2}
Difficulty
medium

Number Chain: 3 → x3 → +7 → +2 → -13 → ?

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Answer: 5

SubType
number-chain
Start
3
Steps
  • {"op":"x","operand":3}
  • {"op":"+","operand":7}
  • {"op":"+","operand":2}
  • {"op":"-","operand":13}
Difficulty
medium

Number Chain: 8 → x5 → -28 → x4 → -1 → ?

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Answer: 47

SubType
number-chain
Start
8
Steps
  • {"op":"x","operand":5}
  • {"op":"-","operand":28}
  • {"op":"x","operand":4}
  • {"op":"-","operand":1}
Difficulty
medium