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 12 1/3 yards on each roll and 3 rolls with 24 2/3 yards of lace on each roll. Did they have enough lace to finish their projects?



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.