Workbook Detail
Function Machine Subtraction Hard — Set 79
? → [×3 - 2] → 1
Show answer
Answer: 1
- SubType
- find-input
- Rule
- ×3 - 2
- Input
- 1
- Output
- 1
- Difficulty
- hard
Input: 3 → [?] → 7, what is the rule?
Show answer
Answer: ×2 + 1
- SubType
- find-rule
- Rule
- ×2 + 1
- Input
- 3
- Output
- 7
- Difficulty
- hard
Input: 6 → [×2] → ?
Show answer
Answer: 12
- SubType
- find-output
- Rule
- ×2
- Input
- 6
- Output
- 12
- Difficulty
- hard
Input: 8 → [×2 + 1] → ?
Show answer
Answer: 17
- SubType
- find-output
- Rule
- ×2 + 1
- Input
- 8
- Output
- 17
- Difficulty
- hard
Input: 5 → [×3] → ?
Show answer
Answer: 15
- SubType
- find-output
- Rule
- ×3
- Input
- 5
- Output
- 15
- Difficulty
- hard
? → [×3 - 2] → 25
Show answer
Answer: 9
- SubType
- find-input
- Rule
- ×3 - 2
- Input
- 9
- Output
- 25
- Difficulty
- hard
Input: 6 → [?] → 15, what is the rule?
Show answer
Answer: ×2 + 3
- SubType
- find-rule
- Rule
- ×2 + 3
- Input
- 6
- Output
- 15
- Difficulty
- hard
Input: 5 → [+2] → ?
Show answer
Answer: 7
- SubType
- find-output
- Rule
- +2
- Input
- 5
- Output
- 7
- 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.