135 + 468 = 603
To estimate the sum of 135 and 468, you can round each number to the nearest hundred. Rounding 135 gives you 100, and rounding 468 gives you 500. Adding these estimates together, 100 plus 500 equals 600. Therefore, a good estimate for 135 plus 468 is approximately 600.
455
329 + 468 = 797
468
468
692
360 !
146 plus 135 = 281
225 + 243 = 468 The increase from 225 to 468 is 108%
468
the sum is 468
135 + 75 + 205 + 805 = 1,220