medium Set 98 Form Exercise

Number Chain: 2 → x4 → x4 → +3 → -3 → ?

Show answer

Answer: 32

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

Number Chain: 7 → +4 → +7 → +2 → +9 → ?

Show answer

Answer: 29

SubType
number-chain
Start
7
Steps
  • {"op":"+","operand":4}
  • {"op":"+","operand":7}
  • {"op":"+","operand":2}
  • {"op":"+","operand":9}
Difficulty
medium

Number Chain: 5 → x4 → x5 → +9 → x4 → ?

Show answer

Answer: 436

SubType
number-chain
Start
5
Steps
  • {"op":"x","operand":4}
  • {"op":"x","operand":5}
  • {"op":"+","operand":9}
  • {"op":"x","operand":4}
Difficulty
medium

Number Chain: 4 → x4 → +10 → x2 → +3 → ?

Show answer

Answer: 55

SubType
number-chain
Start
4
Steps
  • {"op":"x","operand":4}
  • {"op":"+","operand":10}
  • {"op":"x","operand":2}
  • {"op":"+","operand":3}
Difficulty
medium

Number Chain: 3 → +1 → x5 → -18 → x3 → ?

Show answer

Answer: 6

SubType
number-chain
Start
3
Steps
  • {"op":"+","operand":1}
  • {"op":"x","operand":5}
  • {"op":"-","operand":18}
  • {"op":"x","operand":3}
Difficulty
medium

Number Chain: 8 → -2 → +1 → x5 → +3 → ?

Show answer

Answer: 38

SubType
number-chain
Start
8
Steps
  • {"op":"-","operand":2}
  • {"op":"+","operand":1}
  • {"op":"x","operand":5}
  • {"op":"+","operand":3}
Difficulty
medium

Number Chain: 9 → x4 → -19 → -2 → -14 → ?

Show answer

Answer: 1

SubType
number-chain
Start
9
Steps
  • {"op":"x","operand":4}
  • {"op":"-","operand":19}
  • {"op":"-","operand":2}
  • {"op":"-","operand":14}
Difficulty
medium

Number Chain: 7 → x5 → +3 → -31 → -1 → ?

Show answer

Answer: 6

SubType
number-chain
Start
7
Steps
  • {"op":"x","operand":5}
  • {"op":"+","operand":3}
  • {"op":"-","operand":31}
  • {"op":"-","operand":1}
Difficulty
medium