Solve the problem. First use front end rounding. Then find the exact answer.There are 27,878,400 square feet in one square mile. How many square feet are there in 32 square miles?
A. Estimate: 840,000,000 square feet; exact: 892,108,800 square feet
B. Estimate: 900,000,000 square feet; exact: 892,108,800 square feet
C. Estimate: 840,000,000 square feet; exact: 892,096,000 square feet
D. Estimate: 900,000,000 square feet; exact: 892,096,000 square feet
Answer: B
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A. Yes B. No
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