Workbook Detail

Number Chain Mixed Hard — Set 82

Arithmetic B

hard Set 82 Form Exercise

Number Chain: 8 → -3 → +3 → +11 → -18 → -1 → ?

SubType: number-chain
Start: 8
Steps: {"op":"-","operand":3}
{"op":"+","operand":3}
{"op":"+","operand":11}
{"op":"-","operand":18}
{"op":"-","operand":1}
Difficulty: hard

Number Chain: 7 → +8 → -3 → +8 → x4 → -62 → ?

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Answer: 18

SubType: number-chain
Start: 7
Steps: {"op":"+","operand":8}
{"op":"-","operand":3}
{"op":"+","operand":8}
{"op":"x","operand":4}
{"op":"-","operand":62}
Difficulty: hard

Number Chain: 2 → -1 → -1 → -1 → x3 → +12 → ?

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Answer: 9

SubType: number-chain
Start: 2
Steps: {"op":"-","operand":1}
{"op":"-","operand":1}
{"op":"-","operand":1}
{"op":"x","operand":3}
{"op":"+","operand":12}
Difficulty: hard

Number Chain: 6 → +3 → +12 → x2 → x5 → -208 → ?

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Answer: 2

SubType: number-chain
Start: 6
Steps: {"op":"+","operand":3}
{"op":"+","operand":12}
{"op":"x","operand":2}
{"op":"x","operand":5}
{"op":"-","operand":208}
Difficulty: hard

Number Chain: 8 → x4 → x3 → x5 → x5 → +11 → ?

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Answer: 2411

SubType: number-chain
Start: 8
Steps: {"op":"x","operand":4}
{"op":"x","operand":3}
{"op":"x","operand":5}
{"op":"x","operand":5}
{"op":"+","operand":11}
Difficulty: hard

Number Chain: 3 → x3 → x5 → x2 → x5 → +5 → ?

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Answer: 455

SubType: number-chain
Start: 3
Steps: {"op":"x","operand":3}
{"op":"x","operand":5}
{"op":"x","operand":2}
{"op":"x","operand":5}
{"op":"+","operand":5}
Difficulty: hard

Number Chain: 11 → +5 → x3 → +9 → -34 → x3 → ?

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Answer: 69

SubType: number-chain
Start: 11
Steps: {"op":"+","operand":5}
{"op":"x","operand":3}
{"op":"+","operand":9}
{"op":"-","operand":34}
{"op":"x","operand":3}
Difficulty: hard

Number Chain: 5 → x5 → -21 → +3 → -4 → +9 → ?

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Answer: 12

SubType: number-chain
Start: 5
Steps: {"op":"x","operand":5}
{"op":"-","operand":21}
{"op":"+","operand":3}
{"op":"-","operand":4}
{"op":"+","operand":9}
Difficulty: hard

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