Question

Polly's parents car weighs about 3500 pounds. Samantha, Esther, and pollys each wrote the weight of the car in scientific notation. Polly wrote 35.0×10^2, Samantha wrote 0.35×10^4, Esther wrote 3.5×10^4. A. Which of these girls are correct? B. Explain the mistakes of those who got the question wrong.

Answer 1

Esther is correct, the first number to a scientific notation has to be above 0 but under 10

Answer 2

Esther is correct. The other two misplaced the decimal place.