Explain how to estimate 368+231 two differ ways
3 + 2 = 56 + 3 = 98 + 1 = 9So the answer is 599Second way:round down the digits into hundreds, tens, and ones then get the sum of those. 300 + 200 = 500 60 + 30 = 908 + 1 = 9500 + 90 + 9 is 599
