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She lived in the Uruguayan capital, Montevideo, for some time before taking her vows but returned to Brazil in 1930, where she taught Portuguese and maths at a school in Rio.

The Department for Education in England has said students in maths, physics, and combined science exams will be allowed to use formulae and equation sheets.

Behind the scenes work is under way on the Curriculum Reform Cycle – with subjects including maths and English already under review.

He loves maths and physics - something his sisters find hard to understand.

Gadi Moses has said he resorted to pacing his cell and solving mental maths problems to deal with this "psychological abuse".