easy Set 25 Form Exercise

Number Chain: 5 → +7 → +8 → +2 → ?

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Answer: 22

SubType
number-chain
Start
5
Steps
  • {"op":"+","operand":7}
  • {"op":"+","operand":8}
  • {"op":"+","operand":2}
Difficulty
easy

Number Chain: 3 → +7 → +1 → -8 → ?

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Answer: 3

SubType
number-chain
Start
3
Steps
  • {"op":"+","operand":7}
  • {"op":"+","operand":1}
  • {"op":"-","operand":8}
Difficulty
easy

Number Chain: 4 → -2 → +3 → +3 → ?

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Answer: 8

SubType
number-chain
Start
4
Steps
  • {"op":"-","operand":2}
  • {"op":"+","operand":3}
  • {"op":"+","operand":3}
Difficulty
easy

Number Chain: 10 → +2 → -11 → +7 → ?

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Answer: 8

SubType
number-chain
Start
10
Steps
  • {"op":"+","operand":2}
  • {"op":"-","operand":11}
  • {"op":"+","operand":7}
Difficulty
easy

Number Chain: 3 → +4 → -4 → -2 → ?

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Answer: 1

SubType
number-chain
Start
3
Steps
  • {"op":"+","operand":4}
  • {"op":"-","operand":4}
  • {"op":"-","operand":2}
Difficulty
easy

Number Chain: 9 → +10 → -1 → -1 → ?

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Answer: 17

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":10}
  • {"op":"-","operand":1}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 5 → +9 → -11 → -1 → ?

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Answer: 2

SubType
number-chain
Start
5
Steps
  • {"op":"+","operand":9}
  • {"op":"-","operand":11}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 1 → +7 → +8 → -6 → ?

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Answer: 10

SubType
number-chain
Start
1
Steps
  • {"op":"+","operand":7}
  • {"op":"+","operand":8}
  • {"op":"-","operand":6}
Difficulty
easy