im guessing around 11 to 13, but im not sure.
Anne was 13 when she went into hiding, and 15 when she was discovered.
Anne Frank was 13 years old.
Anne Frank went into hiding soon after her 13th birthday. She was born on June 12, 1929 and went into hiding in July 1942 . After two years in hiding the group was betrayed and transported to concentration camps. Seven months after her deportation, Anne Frank died of typhus. Source:http://www.answers.com/anne%20frank
13-15 years old.
She turned 13 a month before she went into hiding.
Anne Frank was thirteen.
Anne was 13 years old when she went into hiding.
Anne Frank was 13 years old when her family went into hiding in the Secret Annex in Amsterdam.
Margot Frank (Anne's sister) was three years older than Anne, she was 17, Anne received her diary as a gift on her 13th birthday.
She was 13 when she went into hiding. The day was July 6, 1942.
Edith Frank was 29-years old when her Anne, her youngest daughter, was born. She was 26-years old when Margot, her oldest daughter, was born.
Anne Frank and her family went into hiding in 1942 during the Nazi occupation of the Netherlands. They stayed hidden in the secret annex of an office building in Amsterdam for over two years before being discovered and arrested in 1944.