In these circle math puzzles, one has to find the missing number in the circle. There are four circles with each circle having four numbers that share some logical or mathematical relationship with each other. Find this relationship and solve it for the missing number.

Answers to these puzzles will be provided later. However, do post your answers in the comment section at the end of this post.

1. Can you find this missing number? |

2. Can you calculate the value of the missing number? |

3. What number replaces the question mark? |

4. Can you find this missing number value? |

5. Can you find the value of the missing number? |

Also, do check out similar fun brain teasers and puzzles as mentioned below which will tickle your brain

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__Answers to Math Circle Brain Teaser__

__Answers to Math Circle Brain Teaser__

1)

Answer is 9

The logic used in this brain teaser is A x D = (B x 10) + C

2)

Answer is 9

The logic used in this brain teaser is A x D = B x C

3)

Answer is 2

The logic used in this brain teaser is A x B = C x D

4)

Answer is 13

The logic used in this brain teaser is A x C = B + D

5)

Answer is 0

The logic used in this brain teaser is D = (B x C) - A x A

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