Question

HELP QUICK!!!!!Lara has four packages of baseball cards. The first package has seventeen cards. The second package has twenty-one cards. The third package has twenty-two cards, and the fourth package has sixteen cards. Using front end estimation what is the best estimate for the total number of baseball cards she has?

A.

90


B.

80


C.

70


D.

60

Answer 1

80

Explanation:

Rounding off each group of cards with ±10 precision we get 20 for all.[Rounding off with this precision because of options provided in that manner]

Thus four deck have fronted estimation of 4×20=80.