A student performs the following estimations.
35+192 230
258+350 610
947+1032 1980
Based on these estimations, which of the following is the student’s estimate of 694+7618?
8320
8500
8300
8310
Correct Answer : D
Here we need to find the actual values of the additions and see the trend the student will use to estimate the given problem. The exact sum is as follows
35+192=227
258+350=608
947+1032=1979
From the above calculations, it is evident that the student rounds up or down the ones place values. So, in the problem we need to approximate 694+7618.
694+7618=8312
We can approximate 8312 based on the provided choices is 8310.
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