Understanding Base and Exponent

Q.

Maya can run $18$ miles in $3$ hours, and she can run on bike $18$ miles in $2$hours.

What is Mayas running speed (in $mph$).

Q. The shortest distance (airline) between New York and Washington D.C is approximately 3.28 $\times$ ${10}^2$ km. Which of the following gives the exponent of the given data, ${10}^2$?

1. 3
2. 10
3. 2
4. 3.28

Q. What is the exponent $(\ast )$ in $1.3\times {10}^{\ast }=13,000?$

1. $3$
2. $4$
3. $5$
4. $6$

Q. The height of the Eiffel Tower is approximately 3 $\times$ ${10}^2$ m. Which of the following gives the base of ${10}^2$?

1. 310
2. 10
3. 2
4. 30

Q. If eight thousand is written as $80\times {10}^{?}$, the value of the exponent $(?)$ is
.

1. $2$
2. $3$
3. $4$

Q. The exponent $(?)$ to the base $10$ for $7.2\times {10}^{?}=72$ is
.

1. $0$
2. $1$
3. $2$

Q. In a cafeteria, five groups of five friends ordered pizza, one for each. How many pizzas have been ordered?

1. ${10}^5$
2. $5^2$
3. 10 $\times$ $1^5$
4. $5^5$

Q. The price of a television is ${10}^4$ dollars. Which of the following gives the price of the television in the standard form?

1. 1, 000 dollars
2. 10, 000 dollars
3. 100 dollars
4. 100, 000 dollars

Q. The area of a desert land is approximately ${10}^3$ sq km. Which of the following gives the area in the standard form?

1. 100, 000 sq km
2. 10, 000 sq km
3. 100 sq km
4. 1, 000 sq km

Q. Rowan's race car can be driven at a speed of up to ${10}^2$ miles per hour. Which of the following gives the speed of Rowan's race car?

1. 10 mph
2. 100 mph
3. 102 mph
4. 210 mph