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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.

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6y ago
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Q: When should you estimate a sum or difference?
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Related questions

What is the estimate sum or difference of 1.45 0.6?

The sum is 2.05 and you don;t need to estimate such a simple sum!


Why should you estimate before you find the sum or difference of large numbers?

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?


What is the estimate each sum or difference for 6.5 - 4.4?

2.0999999999999996


How do estimate each sum or difference?

Sum is the result of an addition problem, while difference is the result of a subtraction problem. Addend Subtractend + Addend - Subtractor Sum Difference


How can you Estimate the sum or difference using benchmarks?

rounding


Estimate the sum or difference of 612,797+811,035?

1423832


Estimate the sum or difference of 3 and 25 - 58?

The answer is -30.


How do you estimate each sum or difference with rounding?

54+86


What is the difference between the exact sum of 106 and 91 and an estimate of the sum by rounding to the nearest hundred?

3


What does estimate each sm or difference mean?

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.


Estimate each sum of difference by rounding 4.204 plus 2.779?

7.000


Estimate the sum or difference 6.45 - 2.81?

3.64