estimate the some or difference by rounding to the olace value indicated
3,912 + 1,269 thousands
Four thousand plus one thousand = ?
To estimate the sum, you need to round each number to the place value indicated and then add them together.
For the number 3,912, the place value indicated is the thousands place. To round it, you look at the digit to the right of the thousands place, which is the hundreds place. If that digit is 5 or greater, you round up by increasing the thousands place by 1. If it's less than 5, you simply drop any digits to the right of the thousands place.
In this case, the digit in the hundreds place is 9, which is greater than 5. Therefore, when rounding 3,912 to the thousands place, you increase the thousands place by 1. So, 3,912 becomes 4,000.
Next, you need to round the number 1,269 to the same place value, which is the thousands place. The digit in the hundreds place is 6, which is greater than 5. Therefore, when rounding 1,269 to the thousands place, you increase the thousands place by 1. So, 1,269 becomes 2,000.
Now you can add the rounded numbers together: 4,000 + 2,000 = 6,000.
So, the estimated sum of 3,912 + 1,269 thousands is 6,000.