Posted by Alyssa on .
estimate each sum or differnce.
7.4 + 3.1+ 9.8
How do I do this?

5TH grade math 
Writeacher,
Is 7.4 closer to 7.0 or 8.0?
Is 3.1 closer to 3.0 or 4.0?
Is 9.8 closer to 9.0 or 10.0?
Once you decide, then add. 
5TH grade math 
Aaliayh,
7.0 3.0 10.0

5TH grade math 
Anonymous,
20

5TH grade math 
Anonymous,
19

5TH grade math 
mackenzie,
3.0+9.0+10.0=20.0

5TH grade math 
Anonymous,
11.11

5TH grade math 
s,
egw

5TH grade math 
brandon,
is it 17.5 ms

5TH grade math 
ailyn,
7.0+3.0+10.0