Estimate 12.56+12.69 using front-end estimation.

about $26.30
about $26.80
about $23.80
about $25.30

Question

Estimate 12.56+12.69 using front-end estimation.
 	
	about $26.30
	about $26.80
	about $23.80
	about $25.30

anonymous · Answer

about 23.80

elise_a18 · Answer

how u get that?

anonymous · Answer

simplifing and multiplying after that

anonymous · Answer

jk its ether a or b

anonymous · Answer

no its d sorry

anonymous · Answer

im cunfused but i know its d

mathmale · Answer

the goal of this problem is to estimate, not to obtain the exact "answer."
12.56+12.69 could be represented, roughly speaking, by rounding off both numbers.  I chose to think of 12.56+12.69 as 12.6 + 12.6, which comes out to 25.2.

mathmale · Answer

So, which of the four answers is the best one, and why?

elise_a18 · Answer

Thanks, @mathmale for your help, and explaining :)

anonymous · Answer

so it would be d right if you rounf after right

mathmale · Answer

Yes, that's correct.  Note (once more) that it was not our goal to find the exact answer, but to estimate it.  (d) is closer than any of the other answers to 25.2.

anonymous · Answer

ok thx