easy Set 63 Form Exercise

Number Chain: 7 → -4 → -1 → +4 → ?

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Answer: 6

SubType
number-chain
Start
7
Steps
  • {"op":"-","operand":4}
  • {"op":"-","operand":1}
  • {"op":"+","operand":4}
Difficulty
easy

Number Chain: 10 → +8 → +4 → -15 → ?

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Answer: 7

SubType
number-chain
Start
10
Steps
  • {"op":"+","operand":8}
  • {"op":"+","operand":4}
  • {"op":"-","operand":15}
Difficulty
easy

Number Chain: 3 → +1 → +9 → -11 → ?

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Answer: 2

SubType
number-chain
Start
3
Steps
  • {"op":"+","operand":1}
  • {"op":"+","operand":9}
  • {"op":"-","operand":11}
Difficulty
easy

Number Chain: 10 → +5 → +1 → +1 → ?

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Answer: 17

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

Number Chain: 2 → -1 → -1 → +4 → ?

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Answer: 4

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

Number Chain: 9 → +10 → -10 → +9 → ?

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Answer: 18

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":10}
  • {"op":"-","operand":10}
  • {"op":"+","operand":9}
Difficulty
easy

Number Chain: 7 → -1 → -5 → -1 → ?

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

Number Chain: 4 → +1 → +8 → -8 → ?

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Answer: 5

SubType
number-chain
Start
4
Steps
  • {"op":"+","operand":1}
  • {"op":"+","operand":8}
  • {"op":"-","operand":8}
Difficulty
easy