follow principles of estimation to find an approximate value.
round each number so that there is one nonzero digit do not find the exact value
64+31+50+42+74 260?
thanks in advance

Question

follow principles of estimation to find an approximate value.
round each number so that there is one nonzero digit  do not find the exact value
64+31+50+42+74        260?
thanks in advance

anonymous · Answer

265?

ybarrap · Answer

Actual,Rounded
64,60
31,30
50,50
42,40
74,70
      ____
      250 <- Sum of Rounded values

Maybe you rounded up on one of them

anonymous · Answer

@ybarrap ur right exept 74 is closer to 75 so the estimate should be 75 not 70

anonymous · Answer

so you would get an estimate around 265

ybarrap · Answer

I was looking at "round each number so that there is one nonzero digit"  so I used 70 to estimate 74 because then that would give me one nonzero digit after rounding

anonymous · Answer

oh yeah well if it wasnt then it would be 75 and ur total estimate should come to about 265

anonymous · Answer

ya so total would be 260 or 250

anonymous · Answer

thanks guys sorry for long response internet froze