easy Set 31 Form Exercise

Number Chain: 7 → -1 → +5 → +8 → ?

Show answer

Answer: 19

SubType
number-chain
Start
7
Steps
  • {"op":"-","operand":1}
  • {"op":"+","operand":5}
  • {"op":"+","operand":8}
Difficulty
easy

Number Chain: 9 → +2 → +7 → -10 → ?

Show answer

Answer: 8

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":2}
  • {"op":"+","operand":7}
  • {"op":"-","operand":10}
Difficulty
easy

Number Chain: 6 → -5 → -1 → -1 → ?

Show answer

Answer: -1

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

Number Chain: 3 → +5 → +8 → +6 → ?

Show answer

Answer: 22

SubType
number-chain
Start
3
Steps
  • {"op":"+","operand":5}
  • {"op":"+","operand":8}
  • {"op":"+","operand":6}
Difficulty
easy

Number Chain: 7 → -4 → -2 → -1 → ?

SubType
number-chain
Start
7
Steps
  • {"op":"-","operand":4}
  • {"op":"-","operand":2}
  • {"op":"-","operand":1}
Difficulty
easy

Number Chain: 1 → +4 → +1 → +9 → ?

Show answer

Answer: 15

SubType
number-chain
Start
1
Steps
  • {"op":"+","operand":4}
  • {"op":"+","operand":1}
  • {"op":"+","operand":9}
Difficulty
easy

Number Chain: 10 → -7 → -1 → +1 → ?

Show answer

Answer: 3

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

Number Chain: 9 → +1 → +4 → -1 → ?

Show answer

Answer: 13

SubType
number-chain
Start
9
Steps
  • {"op":"+","operand":1}
  • {"op":"+","operand":4}
  • {"op":"-","operand":1}
Difficulty
easy