In 2013, the population of China was estimated to be 1,360,760,100. Round off the number of people a. to the nearest thousand. b. to the nearest million. c. to the nearest hundred million. d. to the nearest hundred thousand.

Answer:a) 1,360,760,000b) 1,361,000,000c) 1,400,000,000d)  1,360,800,000Step-by-step explanation:We have to round off the given population number to certain digits.The following are the rules to round of a number:First identify the digit to be rounded.If this digit is followed by 5,6,7,8,9 then we round up the number that is increase the digit by 1 and all the numbers to right becomes zero.If this digit is followed by 0,1,2,3,4 then we round down the number that is decrease the digit by 1 and all the numbers to right becomes zero.a)  to the nearest thousand. Thousands place: 0Right Digit: 1We round down the numberRounded to the nearest 1,000 or t he thousands Place =  1,360,760,000b)  to the nearest millionMillions place: 0Right Digit: 7We round up the numberRounded to the nearest million places = 1,361,000,000c)  to nearest hundred millionHundred million place: 3Right Digit: 6We round up the numberRounded to the nearest million places = 1,400,000,000d)  to the nearest hundred thousand.hundred thousand place: 7Right Digit: 6We round up the numberRounded to the nearest million places = 1,360,800,000