Seudónimo
Seudónimo
22-10-2016
Mathematics
contestada
Use benchmarks to estimate 2.81 + 3.72
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JPGV5172003
JPGV5172003
22-10-2016
I am guessing it's seven because 2.81 rounds to 3 and 3.72 rounds to 4. So 3+4=7
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Аноним
Аноним
22-10-2016
because 2.81 rounded to the nearest benchmark is 3, and 3.72 rounded to the nearest benchmark is 3.5, and 3 plus 3.5 is 6.5
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