easy Set 97 Form Exercise

Number Chain: 9 → -1 → -2 → -4 → ?

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Answer: 2

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

Number Chain: 6 → +2 → -1 → -1 → ?

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Answer: 6

SubType
number-chain
Start
6
Steps
  • {"op":"+","operand":2}
  • {"op":"-","operand":1}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 10 → -1 → +8 → -12 → ?

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Answer: 5

SubType
number-chain
Start
10
Steps
  • {"op":"-","operand":1}
  • {"op":"+","operand":8}
  • {"op":"-","operand":12}
Difficulty
easy

Number Chain: 2 → +3 → +4 → +9 → ?

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Answer: 18

SubType
number-chain
Start
2
Steps
  • {"op":"+","operand":3}
  • {"op":"+","operand":4}
  • {"op":"+","operand":9}
Difficulty
easy

Number Chain: 9 → +9 → -12 → -1 → ?

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Answer: 5

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":9}
  • {"op":"-","operand":12}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 4 → -3 → +2 → +4 → ?

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Answer: 7

SubType
number-chain
Start
4
Steps
  • {"op":"-","operand":3}
  • {"op":"+","operand":2}
  • {"op":"+","operand":4}
Difficulty
easy

Number Chain: 7 → -5 → +2 → -2 → ?

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Answer: 2

SubType
number-chain
Start
7
Steps
  • {"op":"-","operand":5}
  • {"op":"+","operand":2}
  • {"op":"-","operand":2}
Difficulty
easy

Number Chain: 10 → +7 → -13 → -2 → ?

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Answer: 2

SubType
number-chain
Start
10
Steps
  • {"op":"+","operand":7}
  • {"op":"-","operand":13}
  • {"op":"-","operand":2}
Difficulty
easy