Seudónimo
Seudónimo
19-05-2016
Mathematics
contestada
Estimate the sum of 21+17.
Respuesta :
Zie123
Zie123
19-05-2016
40 Is The Sum Of 21+17.
Answer Link
ossashi
ossashi
19-05-2016
When estimating sums, you need to round to get to the answer.
So in the problem:
21+17 = ?
I round 21 to 20.
I
round
17 to 20.
So know, the problem is:
20+20
The answer to 20 + 20 equals
40.
The answer is 40.
Answer Link
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