there was a problem on the test
89__89 with a line on top of both numbers
and there was one like this also
94___95 with a line on top of the 95. I am not sure if i need to round
To solve this problem, you need to understand the concept of rounding. When a number has a line on top of it, it typically signifies that the number is being rounded.
Let's look at the first problem: 89̄89.
To determine whether you need to round, you should look at the digit or digits that the line is placed above. In this case, the line is placed above the 9 in the ones place.
To round a number, you typically look at the digit immediately to the right of the digit being rounded. In this case, the digit to the right of the 9 is another 9.
When the digit to the right is 5 or greater, you should round up. When it is less than 5, you should round down.
Since the digit to the right of the 9 is another 9, which is greater than 5, you should round up the 9 in the ones place to 10. So the rounded number would be 90̄00.
Now let's look at the second problem: 94̄̄̄95.
In this case, the line is placed above the 95, which means you only need to round the last digit.
To determine whether to round, look at the digit immediately to the right of the 5, which is 4 in this case.
Since 4 is less than 5, you should round down. So the rounded number would be 94̄̄000.
It's important to note that the number of zeros after the rounded digit depends on the context and the level of precision required. In some cases, it may only be necessary to round to the nearest ten, resulting in a single zero after the rounded digit. In other cases, more zeros may be required to maintain the overall magnitude of the number.