Elena drove 245 miles last week and 222 miles this week she estimate that she drove about 475 miles in weeks. how Elena estimate

Round each number then add

She estimated by rounding 245 to nearest tens and rounding 222 to nearest five.

Step-by-step explanation:

Given,

The miles she drove last week = 245

Since, 245 ≈ 250 (because the ones place digit is 5 that is we will round up)

Also, the miles she drove this week = 222,

∵ The nearest 5 of 222 is 225,

Thus, the total miles she drove = 245 + 222 ≈ 250 + 225 = 475 miles