Round the decimal to the nearest whole number.
19.8 rounded to the nearest whole number is __?
Answers
Answer: The answer is
20.0
Answer:
1> The last figure kept is unchanged if the following number is less than 5 (0r 50, 500,...; which one is relevant is explained by examples). For example, 50.3 when rounded to a whole number becomes 50. Here the 0 in 50.3 is unchanged because the following number, which is 3 in this case, is less than 5. 98.49 when rounded to a whole number becomes 98. Here the following number is 49 which is less than 50.
2> The last figure is incremented by 1 if the following number is more than 5 (or 50, 500,...). For example, 50.8 becomes 51 and 98.51 becomes 99.
3> If the following number is equal to 5 (or 50, 500,...), then the last figure is incremented by 1 if it is odd. For example, 98.50 becomes 98 and 97.50 also becomes 98. In 98.50, the last figure 8 is even, and in 97.50, the last figure 7 is odd and is incremented to 8. Also, 31.5 becomes 32 and 32.5 also becomes 32.
So, 98.3 becomes 98 when rounded to a whole number ('nearest' is redundant).