Round each value to the nearest 10 and find an estimate of the expression:124 + 38 +71 + 207 A. 410 B. 420 C. 440 D. 450

Note: to round to the nearest ten, look to the first place digit. if it is 5 or greater, round up, if 4 and lower, round down

124 rounded to the nearest ten = 120
38 rounded to the nearest ten = 40
71 rounded to the nearest ten = 70
207 rounded to the nearest ten = 210

120 + 40 + 70 + 210 = 120 + 110 + 210 =  230 + 210 = 440

440, or C is your answer

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