Estimate the answer by rounding each number to the nearest 10: 939 + 65.0 + 103.3 + 72.7
Answer (2)
To estimate 939 + 65.0 + 103.3 + 72.7, we round each number to the nearest ten: 940, 70, 100, and 70. Adding these rounded numbers gives us an estimated sum of 1180.
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Look at the units place ( right of the tens place)...if it is >= 5 round the tens place up one o/w leave the tens unit alone
939 rounds to 940
65.0 rounds to 70
103.3 rounds to 100
72.7 rounds to 70
**940 + 70 + 100 + 70 = 1180 estimated ** ;
