easy Set 98 Form Exercise

Number Chain: 2 → -1 → -1 → +2 → ?

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Answer: 2

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

Number Chain: 1 → -1 → -1 → -1 → ?

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Answer: -2

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

Number Chain: 5 → +10 → +1 → +10 → ?

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Answer: 26

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

Number Chain: 7 → +3 → -9 → -1 → ?

SubType
number-chain
Start
7
Steps
  • {"op":"+","operand":3}
  • {"op":"-","operand":9}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 7 → +5 → +8 → +6 → ?

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Answer: 26

SubType
number-chain
Start
7
Steps
  • {"op":"+","operand":5}
  • {"op":"+","operand":8}
  • {"op":"+","operand":6}
Difficulty
easy

Number Chain: 5 → +3 → +8 → -5 → ?

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Answer: 11

SubType
number-chain
Start
5
Steps
  • {"op":"+","operand":3}
  • {"op":"+","operand":8}
  • {"op":"-","operand":5}
Difficulty
easy

Number Chain: 9 → -2 → +2 → -5 → ?

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Answer: 4

SubType
number-chain
Start
9
Steps
  • {"op":"-","operand":2}
  • {"op":"+","operand":2}
  • {"op":"-","operand":5}
Difficulty
easy

Number Chain: 6 → +1 → -4 → -2 → ?

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Answer: 1

SubType
number-chain
Start
6
Steps
  • {"op":"+","operand":1}
  • {"op":"-","operand":4}
  • {"op":"-","operand":2}
Difficulty
easy