Q 1: Find the missing number: 10  ? = 1 Answer:

Q 2: Find the missing number: 12  ? = 12 Answer:

Q 3: Find the missing number: 9  ? = 2 Answer:

Q 4: Find the missing number: 15  ? = 6 Answer:

Q 5: Find the missing number: 11  ? = 0 Answer:

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Question 8: This question is available to subscribers only!

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!

