Please help my 12 year old, There is a recipie for potpie filling she needs 2 1/8 cups of chopped potatoes?

Question

1 7/8 cups shredded carrots and 1 6/8 cups of chopped onions.\
1. Round the number of cups of each ingrediants adrianna needs.
potatoes,carrots,onions, _______cups

2. What is the sum of estimated amounts?
3. What is the sum of the exact amount of ingredients?
4.Why was estimating the amounts of ingredients useful?

Answer 1

1. potatoes=2 cups
carrots=2 cups
onions=2 cups
2. six
3. 5.75
4. estimating the amounts will allow you to have extra in case you need it and to give you an idea of how much you will need.

Answer 2

Apparently the problem is having divided a more standard recipe. If it helps any, a standard coffee measure is equal to 1/8 cup.

Answer 3

she needs roughly 2 cups of each or 6 cups of veggies - rounding helps make it easier to buy the amount needed when shopping

Answer 4

5 6/8 cups.
exact...
6 cups.
estimated...
estimating is useful to get a general idea of how much you need!
^_^

Answer 5

2 and 1/8 cup? I dunno, I stink @ math. SRY!