easy Set 15 Form Exercise

Number Chain: 9 → -6 → -1 → +9 → ?

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Answer: 11

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

Number Chain: 5 → -4 → -1 → +2 → ?

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Answer: 2

SubType
number-chain
Start
5
Steps
  • {"op":"-","operand":4}
  • {"op":"-","operand":1}
  • {"op":"+","operand":2}
Difficulty
easy

Number Chain: 7 → -5 → -1 → +2 → ?

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Answer: 3

SubType
number-chain
Start
7
Steps
  • {"op":"-","operand":5}
  • {"op":"-","operand":1}
  • {"op":"+","operand":2}
Difficulty
easy

Number Chain: 6 → -4 → -1 → -1 → ?

SubType
number-chain
Start
6
Steps
  • {"op":"-","operand":4}
  • {"op":"-","operand":1}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 5 → +6 → +3 → -3 → ?

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Answer: 11

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

Number Chain: 8 → +10 → -5 → +1 → ?

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Answer: 14

SubType
number-chain
Start
8
Steps
  • {"op":"+","operand":10}
  • {"op":"-","operand":5}
  • {"op":"+","operand":1}
Difficulty
easy

Number Chain: 2 → -1 → -1 → +1 → ?

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Answer: 1

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

Number Chain: 3 → +8 → -6 → +9 → ?

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Answer: 14

SubType
number-chain
Start
3
Steps
  • {"op":"+","operand":8}
  • {"op":"-","operand":6}
  • {"op":"+","operand":9}
Difficulty
easy