21964
5.13+2.28=7.41
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?
sum is addition difference is subtraction
A reasonable estimate of the sum of 78 and 119 is 197.
2.0999999999999996
54+86
Sum is the result of an addition problem, while difference is the result of a subtraction problem. Addend Subtractend + Addend - Subtractor Sum Difference
7.000
21964
The sum is 2.05 and you don;t need to estimate such a simple sum!
In arithmetic, estimate usually means rounding the numbers so they're easier to manipulate. Example: Estimate the sum of 432 and 267. You can round them to 430 and 270 and estimate the sum as 700. You could also round them to 400 and 300 and estimate the same total. To estimate a difference, just subtract them. 430 minus 270 is 160. The actual sum is 699 and the actual difference is 165, so your estimates came pretty close.
rounding
1423832
The answer is -30.
3
No difference. Some companies use each word interchangeably.