Question

1.
What is the product of (5.1 × 10^3) • (3.2 × 10^3)? (1 point)

16.32 × 10^6
1.632 × 10^7
16.32 × 10^9
1.632 × 10^10

2.
What is the product of (7.28 × 10^-2) • (9.1 × 10^-2)? (1 point)

6.6248 × 10^-3
66.248 × 10^-4
6.6248 × 10^4
66.248 × 10^-3

3.
What is the quotient of (2.965 × 10^7) ÷ (5 × 10^3)? (1 point)

14.825 × 10^4
5.93 × 10^5
14.825 × 10^5
5.93 × 10^3

4.
In a recent year, the world production of wheat was about 5.2 × 10^8 metric tons. Canada produced one over twenty-five of this wheat. About how much wheat did Canada produce? (1 point)

20.8 × 10^8
2.08 × 10^7
2.08 × 10^6
20.8 × 10^7

Answer 1

#1 (5.1 × 3.2) × 10^(3+3)
#2 (7.28 × 9.1) × 10^(-2-2)
#3 (2.965 ÷ 5) × 10^(7+3)
#4 (5.2 / 25) × 10^8

Adjust final answers to make sure the leading number is between 1 and 10

Answer 2

Thank you Steve! :)