How do you round 240 to the nearest ten?

How do you write 3075000 in words? How many seconds in 2 minutes? What is the sum of two prime numbers that equal 15? What are the factors and prime factors of 330? Is 0.151515 a rational or an irrational? Is 1.3 percent and 13 percent are same? What number is greater 0.25 or 0.45? How many sqft are in a ton? Is 0.17 bigger than 0.28? Can you simplify 4 over 9? What is the average between 37 percent 80 percent 80 percent? What are all the prime number between 130-140? Is 28 days 4 weeks? What is 0.426 to the nearest tenths? What is the common denominator of 2 and 3? What is the smallest multiple of 7? What is the average IQ of a 5th grader? How do you say 5000 in french? What are the factors for number 57? Convert 500 feet to meters?