English and maths successes were recorded in this year's GCSEs, which were announced last Thursday.
Across England and Wales, English grades were up 1.9 per cent and maths were up 1.2 per cent.
However, these performances were offset by a drop in modern foreign languages.
German, French and Spanish grades all fell markedly.
Commenting on the results, Dr Ellie Johnson Searle, director of the joint council of qualifications, said: "Students and their teachers can be justifiably proud of the improved results this year, with good performance overall and in the key subjects of English and mathematics.
"The further loss of entries in French and German is regrettable."
This year's results saw boys catching up with girls in terms of exam success.
"Boys underwent a 0.5 per cent increase in their five A* to C grades.
Secretary of state for education and skills Alan Johnson said: "Today's GCSE results are evidence of the continuing standards in our schools.
"I congratulate pupils and teachers for their hard work and commitment - they should be proud of their achievements."
In Wandsworth there were smiles everywhere, as the overall average GCSE result rose by four points.
The most notable improvement was Battersea Technology College whose pass rate has quadrupled in the last three years.
With a 56 per cent pass rate the school is now close to the national average of 62.4 per cent.
Putney High School had an outstanding result of 100 per cent ofpupils gaining five A* to C grades.
Headmistress Dr Denise Lodge said: "There have been some incredible results today - with many of the girls achieving A grades in all their chosen subjects.
"These results are testament to their efforts and they have proved that combining hard work with lively enthusiasm and some good fun along the way is a winning combination. I am very proud of them all."
Graveney, Chestnut Grove and Burntwood also did well and Ernest Bevin school was able to boast the best results they have ever had.
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