Question

The pyrotechnic team for Fist Bump’s tour want to know how high the arena is to 2 decimal places. The arena is 61.3786 metres high. How high is it to 2 d.p?

Answer 1

The height of the arena, rounded to 2 decimal places, is 61.38 meters.

Step-by-step explanation:

The height of the arena, rounded to 2 decimal places, is 61.38 meters.

To round a number to 2 decimal places, you need to look at the third decimal place. If it is 5 or greater, you round up the second decimal place. If it is less than 5, you leave the second decimal place as it is.

In this case, the third decimal place is 7, which is 5 or greater. So, we round up the second decimal place, making it 8. Therefore, the height of the arena to 2 decimal places is 61.38 meters.

Answer 2

When you find any value to x amount of decimal places, you need to go to the term AFTER that to determine the correct value. So, for this, take 61.378 metres. From here, look if the last number is 4 or less. If the number is 4 or less, take the leftmost number off, and you will have your answer (if we had 61.373, the correct answer would be 61.37). If the number is 5 or more, take the leftmost number off, and add 1 to the new leftmost number. Since the last number is 8, the correct answer here is 61.38 metres high. If adding 1 makes the number 10, keep the 0 at the end. So, if you had 61.399, you would make it 61.40