Question

Round to the nearest whole number to estimate the sum of 23.19 and 13.7. Then give the exact sum.

Answer 1

If you round 23.19 to the nearest whole number you get 23 and if you round 13.7 you get 13. 13+23 is 33. The real numbers are 23.19 and 13.7, add them together and you get 36.89. The exact sum is 36.89 (:

Answer 2

OK 23.19+13.7 equals 36.89. But if you round to the nearest whole number you get 37.