text: Nick Clegg today revealed he struggled with maths at school, as he prepares to launch his election manifesto which will promise to balance the nation's books 'fairly'. The Lib Dem leader told a group of children he was better at languages and art when he was at school. He will use tomorrow's manifesto launch to promise a 'stronger economy and a fairer society', and accuse the Tories of wanting to embark on an unnecessarily deep cuts. Lib Dem leader Nick Clegg today revealed he struggled with maths at school, as he prepares to launch his election manifesto which will promise to balance the nation's books 'fairly' Mr Clegg has promised to 'spread the burden' of deficit reduction, with cuts to benefits and Whitehall budgets along with tax rises aimed at the very wealthy. He has set out plans for £5billion in new tax rises, £7billion raised from a crackdown on tax avoidance, £12 billion in public spending reductions and a £3 billion cut from welfare. But today he admitted that maths had not been his strong point as a youngster. Answering questions from youngsters at the Cradle Hill community primary school in Seaford, East Sussex, Mr Clegg said: 'My grades were OK. I was better at languages and English and art and history, I was a bit better at that than I was at maths and science.' Despite his professed weakness in science he added:'I liked physics.' Mr Clegg visited the school alongside former minister Norman Baker, who hopes to retain the Lewes seat. Mr Clegg, campaigning with Lib Dem minister Simon Hughes in Southwark, has promised to 'spread the burden' of deficit reduction, with cuts to benefits and Whitehall budgets along with tax rises aimed at the very wealthy . The Lib Dems will launch their manifesto tomorrow, after the Tories unveiled their promise of 'the Good Life' today and Labour's Ed Miliband vowed to cut the deficit every year at his launch yesterday. On the campaign trail in south London earlier, Mr Clegg criticised Conservative plans to extend the Margaret Thatcher's flagship Right to Buy scheme. The existing scheme allows tenants living in council-owned properties local authority tenants to buy houses and flats at a discount of as much as 70 per cent up to a maximum of £102,700 in London and £77,000 across the rest of England. The Conservatives plan would extend the scheme to people living in properties owned by housing associations - not-for-profit bodies that receive public money and loans from the private sector to provide low-cost homes. But Mr Clegg said: 'It's a measure of how much the Conservatives have run out of new ideas that the big idea on the day they publish their manifesto is a poor cover version of one of Margaret Thatcher's 1980s hits. It doesn't even add up, it's not even affordable as the housing industry has said.' 'It will not help people who don't presently live in their own home, it does not help the youngsters who are living with mum and dad and want to move out, it does not help the millions of people in private rented accommodation who want to own their own home. 'As the housing industry has said, actually under this plan you will see affordable housing go down rather than go up.' Miriam Clegg at a campaign event in Greater Manchester . Nick Clegg's wife Miriam today revealed how she is juggling the election campaign with making sure their three sons are 'OK during this intensive time'. Mrs Clegg, who uses her maiden name Gonzalez Durantez, hit the campaign trail in Hazel Grove, Greater Manchester. She took part in a series of activities in the guides hut, including making lava lamps and also edible pigs made from cream eggs, chocolate digestives and fondant. Asked if the campaign was a hard time for her and her family, she said: 'It's a busy time. 'I primarily focus on ensuring that our children are OK during this intensive time and then I continue with my normal life and try to help from time to time as I see that I can fit, without changing completely my life, but helping as much as I can.' She said: 'It's an exciting campaign. It's obviously a very close campaign for everybody. Nobody's going to have an outright majority and that makes it quite interesting.' On whether Mr Clegg was holding up, she said: 'Oh yes, you can see him.' The couple have three sons: Alberto, Migel and Antonio.
target: Clegg tells pupils he was better at languages and art as a youngster .
  Lib Dem manifesto to promise to eradicate the deficit 'fairly' by 2019 .
  Clegg's wife Miriam says her priority is making sure their sons are 'OK'