1. What makes the statement true? 8^-2 =?
A. 64
B. 16
C. -1/64
D. 1/64
2. What is the solution to (4 x 10^3) x (6 x 10^6), written in a scientific notation?
A. 24 x 10^9
B. 2.4 x 10^9
C. 24 x 10^18
D. 2.4 x 10^10
3. What is 0.000000512 written in a scientific notation?
A. 5.12 x 10^6
B. 512 x 10^5
C. 5.12 x 10^-6
D. 512 x 10^-5
4. What is 31/4 written as a decimal?
A. 6.75
B. 7.50
C. 7.75
D. 8.25
5. What is 2.28 x 10^-8 in standard form?
A. 228,000,000
B. 22,800,000
C. 0.0000000228
D. 0.00000228
6. Jessica went to the mall and used 1/6 of her money on lunch. What is the fraction of her money expressed as a decimal?
_
A. 0.6
_
B. 0.7
_
C. 0.16
_
D. 0.17
7. Ashley is making cookies. The recipe calls for 3/4 of a cup of sugar. She needs to make 5 batches of cookies. How many cups of sugar does Ashley need?
A. 3 cups
B. 3 1/4 cups
C. 3 1/2 cups.
D. 3 3/4 cups