What is the compatible estimation for 329 + 64
320 + 60 = 380
123
To get a compatible estimation for the sum of 329 and 64, you can round each number to the nearest ten and then add them together.
The nearest ten for 329 is 330, as it is closer to 330 than to 320. Similarly, the nearest ten for 64 is 60.
Now, add 330 and 60 together: 330 + 60 = 390.
Therefore, a compatible estimation for 329 + 64 is 390.