Use the clustering estimation technique to find the approximate total in the following question. What is the estimated sum of 105, 101, 139, and 78?

Question

Reginald Daniel

Mathematics

31 December, 12:30

Use the clustering estimation technique to find the approximate total in the following question. What is the estimated sum of 105, 101, 139, and 78?

+4

Answers (2)

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Braeden Sims · Answer 1

105, 101, 139, and 78 all cluster around 100

so estimated sum = 4 * 100

= 400

Cierra Rogers · Answer 2

cluster estimation is to estimate sums when the numbers being added cluster near in value to a single number. it is 100 in this case.

estimate sum = 100x4 = 400