easy Set 48 Form Exercise

Number Chain: 8 → +10 → +2 → -1 → ?

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Answer: 19

SubType
number-chain
Start
8
Steps
  • {"op":"+","operand":10}
  • {"op":"+","operand":2}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 7 → -4 → +4 → -1 → ?

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Answer: 6

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

Number Chain: 9 → +1 → +6 → -2 → ?

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Answer: 14

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":1}
  • {"op":"+","operand":6}
  • {"op":"-","operand":2}
Difficulty
easy

Number Chain: 10 → -5 → +10 → -6 → ?

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Answer: 9

SubType
number-chain
Start
10
Steps
  • {"op":"-","operand":5}
  • {"op":"+","operand":10}
  • {"op":"-","operand":6}
Difficulty
easy

Number Chain: 4 → +7 → -2 → -2 → ?

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Answer: 7

SubType
number-chain
Start
4
Steps
  • {"op":"+","operand":7}
  • {"op":"-","operand":2}
  • {"op":"-","operand":2}
Difficulty
easy

Number Chain: 5 → +7 → -5 → +6 → ?

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Answer: 13

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

Number Chain: 6 → -5 → -1 → -1 → ?

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Answer: -1

SubType
number-chain
Start
6
Steps
  • {"op":"-","operand":5}
  • {"op":"-","operand":1}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 3 → -2 → -1 → -1 → ?

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Answer: -1

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