562
147
should equal 19.783
600 + 250 = 850
Nine twentieths, or just under one half.
The best estimate is, of course, the correct value, which is so easy to calculate that I am astounded that anyone would want to estimate it. 128 + 375 = 125 + 3 + 375 = 125 + 375 + 3 = 500 + 3 = 503 The second best is 500.
147
should equal 19.783
I think 8... But I'm not sure.
83.74 + 2.93 ≅ 83.75 + 3 = 86.75
1,040 as 29 + 11 = 40 then add 1,000
600 + 250 = 850
Nine twentieths, or just under one half.
100 That is an estimate.
6 and 1/3
The answer is 119.5. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.
The best estimate is, of course, the correct value, which is so easy to calculate that I am astounded that anyone would want to estimate it. 128 + 375 = 125 + 3 + 375 = 125 + 375 + 3 = 500 + 3 = 503 The second best is 500.
There is no "best" estimate other than the exact answer since any other estimate can be improved with some effort.3.2*5 = 163.5*4 = 14 so I would go for 15.