This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.

Passage: The Steelers entered their first matchup with the Cleveland Browns having won 15 of the last 16games between the two teams. Ben Roethlisberger started the game despite missing practice time during the week due to a shoulder injury suffered in Week One. The Steelers' defense held the Browns to 16yards on their first four drives, as the teams played to a scoreless tie after the first quarter. After a Bryant McFadden interception the Steelers drove 70yards and Roethlisberger connected with Hines Ward for their third touchdown combination of the season. Cleveland responded with a 14play, 71yard drive, but Troy Polamalu intercepted a Cleveland pass as time expired in the first half solidifying Pittsburgh's seven point halftime lead. A 48-yard pass from Roethlisberger to Santonio Holmes and a 48-yard field goal from Jeff Reed on the team's second drive of the second half brought the score to 10-0. The Browns' Phil Dawson converted two consecutive field goals, to pull Cleveland within four points with 3:21remaining. After a fourth down stop, Cleveland's offense took over with 26seconds remaining, but failed to gain yardage as time expired. With the win, the Steelers increased their win streak over the Browns to 10consecutive gamesthe longest current winning streak over a single opponent in the NFL. With the win the Steelers improved to 2-0 and led the AFC North by 1/2 a game ahead of the Ravens.
How many points were Pittsburgh leading by at the start of the 2nd half?