23
926
9.
Estimate: 40+20 = 60 Actual: 38+23 = 61
To the nearest 1000 it is 7000 + 7000 = 14000 To the nearest 100 it is 7300 + 6900 = 14200 To the nearest 10 it is 7310 + 6900 = 14210.
20 + 60 = 80
8 + 10 = 18
50*7 = 350
It is 3+3+4 = 10.
23
500 + 400 = 900
8000 + 3000 = 11000
8 + 11 = 19
79
926
Cost estimation is important because each project has the risk of added costs that weren't consider up front throwing the project into a state where you may not have the budget required to continue working on the project. The cost estimation should include the initial assessment plus % available for added costs.
86 + 40 = 126