Asked by Bart
Use front-end estimation to find the value of the expression. I do not understand (without adjustment)
687 - 239 (without adjustment)
is this right?
600 + 200= 800 + 126=926
687 - 239 (without adjustment)
is this right?
600 + 200= 800 + 126=926
Answers
Answered by
Ms. Sue
If your problem is 687 - 239, it makes sense to me to do it this way:
700 = 200 = 500
700 = 200 = 500
Answered by
Ms. Sue
Correction:
700 - 200 = 500
700 - 200 = 500
Answered by
Bart
Right it was subtraction. So what does "without adjustment" mean?
Answered by
Ms. Sue
I'm not a math teacher -- but I assume you don't need to adjust for the small differences between your estimated numbers and the actual numbers.
This site may explain it.
http://mathforum.org/library/drmath/view/65415.html
This site may explain it.
http://mathforum.org/library/drmath/view/65415.html
Answered by
Bart
Thank you
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.