When the exact number is not required, only a ball park figure or an order of magnitude. This could be forced upon you when you do not have exact values for the two quantities involved.
The sum is 2.05 and you don;t need to estimate such a simple sum!
2.0999999999999996
Sum is the result of an addition problem, while difference is the result of a subtraction problem. Addend Subtractend + Addend - Subtractor Sum Difference
1423832
54+86
46.78-18.55 and estimate each sum or difference = 28.23
The sum is 2.05 and you don;t need to estimate such a simple sum!
Because you will see that the sum or difference is close to your estimate. If it isn't that close, round the number you're estimating to the nearest compatible number and find the sum or difference Sum = Addition Difference = Subtraction Product = Multiplication Quotient = Division Does this answer help?
2.0999999999999996
Sum is the result of an addition problem, while difference is the result of a subtraction problem. Addend Subtractend + Addend - Subtractor Sum Difference
rounding
1423832
The answer is -30.
54+86
3
12,825
7.000