Operations Scientific Notation Word Problems

The US spends an average of 1.02x10⁴ dollars on each student per year. There are about 7.6x10⁷ students in the US. About how much money total is spent on students per year?

• Add

• Subtract

• Multiply

• Divide

The population of Mathville is 5.6 x 10³. The population of Algeville is 1.3 x 10⁴. How many more people are there in Algeville?

• Add

• Subtract

• Multiply

• Divide

There are approximately 3.1 x 10⁸ people in the United States. If each person has 4.1 x 10¹ coins, how many coins are there altogether?

• 271 x 10¹⁰

• 271 x 10⁹

• 271 x 10¹¹

• 271 x 10⁸

A computer's hard disk drive holds 8 x 10⁷ bytes of information.  If Jill buys an extra memory stick that holds 3 x 10⁶ bytes of information, how much memory will the computer hold?

• 11 x 10¹³

• 11 x 10⁷

• 8.3 x 10¹³

• 8.3 x 10⁷

The population of Mathville is 5.6 x 10³. The population of Algeville is 1.3 x 10⁴. How many more people are there in Algeville?

• 7400

• 740

• 7.4 x 10⁴

• 7.4 x 10¹

By area, Russia is the largest country in the world. It has an area of 8.649 x 10⁶ square miles. Canada is second with 4.797 x 10⁶ square miles. What is the difference in area?

• 3.852 x 10⁶ square miles

• 3.852 x 10⁰ square miles

• 1.803 x 10⁶ square miles

• 1.803 x 10¹ square miles

Which is the largest?
4.8 x 10^-6 
1.3 x 10²⁰
3.1 x 10^-4
9.2 x 10^-5 
9.5 x 10³²
5.9 x 10^-5
2.9 x 10²¹
8.4 x 10¹⁹

• 9.5 x 10³²

• 3.1 x 10^-4

• 8.4 x 10¹⁹

• 4.8 x 10^-6 

Solve:
(2.1×10​²​​) × (3.0×10​⁴)

• 5.1 x 10²

• 6.3 x 10⁶

• 5.1 x 10⁶

• 6.3 x 10⁸

Convert the following number to scientific notation:
12,000,000

• 1.2 x 10⁷

• 1.2 x 10⁶

• 12 x 10⁷

Convert the following number to standard form:
8.15 x 10⁶

• 815,000

• 815,000,000

• 8,150,000

• 0.00000815