Mastering Standard Form: Solve Math Problems with Ease

1. Sarah has 3,000 marbles. If she gives away 1,500 marbles, how many does she have left in standard form?

• 1.5 x 10^3

• 2.0 x 10^3

• 1.0 x 10^3

• 1.2 x 10^3

2. A factory produces 25,000 toys each month. How many toys does it produce in 6 months? Write your answer in standard form.

• 1.2 x 10^5

• 1.5 x 10^5

• 2.5 x 10^5

• 3.0 x 10^5

3. A library has 1,200,000 books. If 300,000 books are checked out, how many books remain? Express your answer in standard form.

• 1.0 x 10^6

• 9.0 x 10^5

• 7.5 x 10^5

• 8.0 x 10^5

4. A car travels 150,000 miles in its lifetime. If it has already traveled 75,000 miles, how many more miles can it travel? Write your answer in standard form.

• 7.5e+4

• 2.5e+4

• 5.0e+4

• 1.5e+5

5. There are 4,500 students in a school. If 1,200 students graduate, how many students are left? Provide your answer in standard form.

• 2.5 x 10^3

• 3.3 x 10^3

• 4.0 x 10^3

• 1.2 x 10^3

6. A farmer has 2,500 apples and sells 1,750. How many apples does he have left? Write your answer in standard form.

• 1.5 x 10^3

• 7.5 x 10^2

• 8.5 x 10^2

• 2.0 x 10^2

7. A city has a population of 1,000,000 people. If 250,000 people move away, what is the new population in standard form?

• 7.0 x 10^5

• 8.0 x 10^5

• 6.5 x 10^5

• 7.5 x 10^5

8. A bookstore sells 3,200 books in a week. How many books does it sell in 4 weeks? Write your answer in standard form.

• 1.28 x 10^4

• 3.2 x 10^4

• 1.6 x 10^4

• 2.4 x 10^4

9. A concert hall can hold 5,000 people. If 2,500 tickets are sold, how many tickets are left? Express your answer in standard form.

• 4.0 x 10^3

• 1.5 x 10^3

• 2.5 x 10^3

• 3.0 x 10^3

10. A school has 600,000 crayons. If 150,000 crayons are used for art projects, how many crayons are left? Write your answer in standard form.

• 5.0 x 10^5

• 2.0 x 10^5

• 3.5 x 10^5

• 4.5 x 10^5