1330 plus 900
The ballpark estimate for 439 plus 71 can be simplified by rounding both numbers. Rounding 439 to 440 and 71 to 70 gives us 440 plus 70, which equals 510. Therefore, the ballpark estimate for 439 plus 71 is approximately 510.
600
600
120+220
200+100
520.
23.40
The ballpark estimate for 439 plus 71 can be simplified by rounding both numbers. Rounding 439 to 440 and 71 to 70 gives us 440 plus 70, which equals 510. Therefore, the ballpark estimate for 439 plus 71 is approximately 510.
45 + 70 ( rounding ) = 115... 67+85=
How do you make a ballpark estimate of 7201 plus 6988?
1214
600
33
600
209
14200
120+220