Bid & Ask: The Deals of the Week

1. Spain’s national lottery operator, Sociedad Estatal Loterías y Apuestas del Estado, may raise as much as $10 billion in an IPO, valuing the company at about $30 billion.

2. Microblogging site Twitter is in talks with investors over hundreds of millions of dollars in financing that would value the startup at about $7 billion, almost double its worth when it got $200 million in financing in December.

3. Singapore’s state-owned investment firm, Temasek, raised $3.6 billion by selling stakes in China Construction Bank and Bank of China.

4. Immucor, a maker of blood screening systems, will be bought by private equity firm TPG Capital for $2 billion.

5. Norway’s sovereign wealth fund is paying French insurer Axa (AXAHY) $1 billion for 50 percent of seven properties in Paris. The resulting joint venture is part of Norway’s plan to add at least $25 billion in real estate assets.

6. Money-transfer firm Western Union (WU) will pay $976 million for the business-payments division of London-based Travelex, which serves customers in 14 countries.

7. Houston’s National Oilwell Varco, the world’s No. 1 provider of oil-field equipment, agreed to buy pipe and construction materials maker Ameron International (AMN) for $772 million.

8. Asia’s No. 2 smartphone maker, HTC, is paying $300 million for Fremont (Calif.)-based S3 Graphics, gaining access to patents as it defends against infringement lawsuits from Apple (AAPL).

9. Billionaire Philip Falcone’s wireless venture, LightSquared, raised $265 million to build out its network and cover expenses. LightSquared has pulled in $2.3 billion in financing in the past year.

10. A Lamborghini that once belonged to former Beatle Paul McCartney fetched about $197,000 with fees at an auction in Chichester, England, on July 1.