Should an estimate or the exact answer be calculated? Then do the appropriate calculation.

The sewing club needed 90 yards of lace to finish their various projects. They had 2 rolls of lace that had yards on each roll and 3 rolls with yards of lace on each roll. Did they have enough lace to finish their projects?
Should an estimate A.An estimate can be used to know if they have enough lace.
12 • 2 + 24 • 3 = 96
They have at least 96 yards of lace.
B. The exact answer is needed to know if they have enough lace.
They have yards of lace.

Question

Should an estimate or the exact answer be calculated? Then do the appropriate calculation.
 

The sewing club needed 90 yards of lace to finish their various projects. They had 2 rolls of lace that had   yards on each roll and 3 rolls with   yards of lace on each roll. Did they have enough lace to finish their projects? 
Should an estimate A.An estimate can be used to know if they have enough lace.
12 • 2 + 24 • 3 = 96
They have at least 96 yards of lace.
  B. The exact answer is needed to know if they have enough lace.
They have   yards of lace.

anonymous · Answer

please help me

anonymous · Answer

You need to know the exact number of lace. Estimating would be impossible seeing as there are no yards on each roll given and you would be just guessing at numbers and would not know if they had enough to complete the project.