How can estimating be helpful before finding an actual product.
it will make it easier to solve the problem.Also it would be faster because you don't have to get the exact amount like cooking for groups of people and you don't know how many people are coming so you estimate.But you have to round up so you have enough food but if you round down you might not have enough food.
Estimating before solving helps you find the right answer because if your number is far away from your estimate than you have the answer wrong if it is close to your estimation you have the answer right.
It is helpful because when you are estimating you don't have the exact amout so it is easier and faster
Hope this helps! :)