Workbook Detail
Number Chain Mixed Hard — Set 86
Number Chain: 12 → +8 → -2 → -10 → +2 → -1 → ?
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Answer: 9
- SubType
- number-chain
- Start
- 12
- Steps
- {"op":"+","operand":8}
- {"op":"-","operand":2}
- {"op":"-","operand":10}
- {"op":"+","operand":2}
- {"op":"-","operand":1}
- Difficulty
- hard
Number Chain: 12 → +3 → x2 → +11 → x5 → +5 → ?
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Answer: 210
- SubType
- number-chain
- Start
- 12
- Steps
- {"op":"+","operand":3}
- {"op":"x","operand":2}
- {"op":"+","operand":11}
- {"op":"x","operand":5}
- {"op":"+","operand":5}
- Difficulty
- hard
Number Chain: 6 → x5 → +10 → x2 → +3 → x2 → ?
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Answer: 166
- SubType
- number-chain
- Start
- 6
- Steps
- {"op":"x","operand":5}
- {"op":"+","operand":10}
- {"op":"x","operand":2}
- {"op":"+","operand":3}
- {"op":"x","operand":2}
- Difficulty
- hard
Number Chain: 7 → x5 → -27 → -3 → -4 → -1 → ?
- SubType
- number-chain
- Start
- 7
- Steps
- {"op":"x","operand":5}
- {"op":"-","operand":27}
- {"op":"-","operand":3}
- {"op":"-","operand":4}
- {"op":"-","operand":1}
- 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: 9 → +11 → x3 → +4 → -12 → +9 → ?
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Answer: 61
- SubType
- number-chain
- Start
- 9
- Steps
- {"op":"+","operand":11}
- {"op":"x","operand":3}
- {"op":"+","operand":4}
- {"op":"-","operand":12}
- {"op":"+","operand":9}
- Difficulty
- hard
Number Chain: 2 → +10 → x2 → -1 → +4 → x2 → ?
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Answer: 54
- SubType
- number-chain
- Start
- 2
- Steps
- {"op":"+","operand":10}
- {"op":"x","operand":2}
- {"op":"-","operand":1}
- {"op":"+","operand":4}
- {"op":"x","operand":2}
- Difficulty
- hard
Number Chain: 10 → +5 → -8 → -1 → +11 → +3 → ?
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Answer: 20
- SubType
- number-chain
- Start
- 10
- Steps
- {"op":"+","operand":5}
- {"op":"-","operand":8}
- {"op":"-","operand":1}
- {"op":"+","operand":11}
- {"op":"+","operand":3}
- Difficulty
- hard
Teaching Notes
Practice number chain mixed with free hard printable worksheets. Uniquely generated — reinforce key math skills.
Frequently Asked Questions
How do I use this Number Chain Mixed Hard Practice?
Print the worksheet and use it for independent practice, homework, or assessment. The included answer key allows for quick grading.
Is there an answer key?
Yes — the answer key is included and can be printed separately.