Whats the estimate of 73,404+27,865?

101,269 its not an estimate its the exact answer

The estimate for that sum is 100,000. This is because you round the numbers to the nearest thousand. For 73,404, you round it to 73,000, and with 27,865, you round it to 28,000. Adding 73 + 28 gives you 101 so you know the answer will be around there, but you can say 100 as an estimate or you can say 101.