estimate each sum or differnce.
7.4 + 3.1+ 9.8
How do I do this?
7.0 3.0 10.0
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.
11.11
egw
is it 17.5 ms
7.0+3.0+10.0
To estimate the sum of 7.4 + 3.1 + 9.8, you can simply round each number to the nearest whole number and then add them together. Here's how you can do it:
1. Start by rounding each number to the nearest whole number:
- 7.4 rounds to 7
- 3.1 rounds to 3
- 9.8 rounds to 10
2. Now, add the rounded numbers together:
7 + 3 + 10 = 20
Therefore, an estimated sum of 7.4 + 3.1 + 9.8 is approximately 20.