Workbook Detail
Function Machine Subtraction Hard — Set 81
Input: 2 → [?] → 4, what is the rule?
Show answer
Answer: ×2
- SubType
- find-rule
- Rule
- ×2
- Input
- 2
- Output
- 4
- Difficulty
- hard
? → [+5] → 11
Show answer
Answer: 6
- SubType
- find-input
- Rule
- +5
- Input
- 6
- Output
- 11
- Difficulty
- hard
? → [-3] → 1
Show answer
Answer: 4
- SubType
- find-input
- Rule
- -3
- Input
- 4
- Output
- 1
- Difficulty
- hard
? → [-3] → 7
Show answer
Answer: 10
- SubType
- find-input
- Rule
- -3
- Input
- 10
- Output
- 7
- Difficulty
- hard
Input: 9 → [?] → 21, what is the rule?
Show answer
Answer: ×2 + 3
- SubType
- find-rule
- Rule
- ×2 + 3
- Input
- 9
- Output
- 21
- Difficulty
- hard
Input: 7 → [?] → 35, what is the rule?
Show answer
Answer: ×5
- SubType
- find-rule
- Rule
- ×5
- Input
- 7
- Output
- 35
- Difficulty
- hard
Input: 8 → [×3] → ?
Show answer
Answer: 24
- SubType
- find-output
- Rule
- ×3
- Input
- 8
- Output
- 24
- Difficulty
- hard
Input: 10 → [?] → 15, what is the rule?
Show answer
Answer: +5
- SubType
- find-rule
- Rule
- +5
- Input
- 10
- Output
- 15
- Difficulty
- hard
Teaching Notes
Practice function machine subtraction with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Function Machine Subtraction Hard Worksheets worksheet?
Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.