hard Set 46 Form Exercise

Number Chain: 7 → x3 → +7 → +11 → +10 → -38 → ?

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Answer: 11

SubType
number-chain
Start
7
Steps
  • {"op":"x","operand":3}
  • {"op":"+","operand":7}
  • {"op":"+","operand":11}
  • {"op":"+","operand":10}
  • {"op":"-","operand":38}
Difficulty
hard

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

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Answer: 9

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

Number Chain: 6 → -3 → -2 → x2 → +7 → -3 → ?

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Answer: 6

SubType
number-chain
Start
6
Steps
  • {"op":"-","operand":3}
  • {"op":"-","operand":2}
  • {"op":"x","operand":2}
  • {"op":"+","operand":7}
  • {"op":"-","operand":3}
Difficulty
hard

Number Chain: 1 → +12 → x4 → -4 → -40 → x5 → ?

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Answer: 40

SubType
number-chain
Start
1
Steps
  • {"op":"+","operand":12}
  • {"op":"x","operand":4}
  • {"op":"-","operand":4}
  • {"op":"-","operand":40}
  • {"op":"x","operand":5}
Difficulty
hard

Number Chain: 4 → -3 → +9 → +1 → -6 → -1 → ?

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Answer: 4

SubType
number-chain
Start
4
Steps
  • {"op":"-","operand":3}
  • {"op":"+","operand":9}
  • {"op":"+","operand":1}
  • {"op":"-","operand":6}
  • {"op":"-","operand":1}
Difficulty
hard

Number Chain: 11 → +8 → +6 → x3 → -10 → +12 → ?

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Answer: 77

SubType
number-chain
Start
11
Steps
  • {"op":"+","operand":8}
  • {"op":"+","operand":6}
  • {"op":"x","operand":3}
  • {"op":"-","operand":10}
  • {"op":"+","operand":12}
Difficulty
hard

Number Chain: 9 → +9 → x5 → -19 → x2 → +12 → ?

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Answer: 154

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":9}
  • {"op":"x","operand":5}
  • {"op":"-","operand":19}
  • {"op":"x","operand":2}
  • {"op":"+","operand":12}
Difficulty
hard

Number Chain: 7 → x3 → x2 → -18 → +6 → -1 → ?

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Answer: 29

SubType
number-chain
Start
7
Steps
  • {"op":"x","operand":3}
  • {"op":"x","operand":2}
  • {"op":"-","operand":18}
  • {"op":"+","operand":6}
  • {"op":"-","operand":1}
Difficulty
hard