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Mathematics 8 Online
OpenStudy (anonymous):

The Johnsons traveled 82 miles from their home to Saw Creek. From Saw Creek, it took them 313 miles to get to Burtonsville. Use front end estimation to estimate the miles they traveled on their trip. 380 mi 390 mi 400 mi 410 mi

OpenStudy (maheshmeghwal9):

same as before^_^

OpenStudy (anonymous):

82 -- > 80, 313 --> 310. Thus, summing it together gets 390

OpenStudy (campbell_st):

310 + 80 = 390

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