easy Set 69 Form Exercise

Number Chain: 9 → +4 → +8 → -17 → ?

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Answer: 4

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":4}
  • {"op":"+","operand":8}
  • {"op":"-","operand":17}
Difficulty
easy

Number Chain: 9 → +2 → +8 → -14 → ?

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Answer: 5

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":2}
  • {"op":"+","operand":8}
  • {"op":"-","operand":14}
Difficulty
easy

Number Chain: 1 → +5 → +5 → +7 → ?

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Answer: 18

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

Number Chain: 3 → -1 → +2 → -1 → ?

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Answer: 3

SubType
number-chain
Start
3
Steps
  • {"op":"-","operand":1}
  • {"op":"+","operand":2}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 10 → -7 → -1 → -1 → ?

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Answer: 1

SubType
number-chain
Start
10
Steps
  • {"op":"-","operand":7}
  • {"op":"-","operand":1}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 2 → +6 → -5 → +6 → ?

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Answer: 9

SubType
number-chain
Start
2
Steps
  • {"op":"+","operand":6}
  • {"op":"-","operand":5}
  • {"op":"+","operand":6}
Difficulty
easy

Number Chain: 10 → -8 → -1 → +10 → ?

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Answer: 11

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