133, 115, 120, and 111 passengers on four shuttle flights between Los Angeles and San Francisco during 1 day. What was the total number of passengers?
133 + 115 + 120 + 111
http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS362&q=133+%2B+115+%2B+120+%2B+111+