Tribe Name ________________________________
Point Score __________
Name _______________________________ Date ___________________
Pre-Algebra
Mastery Challenge
34 points
Lesson 4-8: Scientific Notation
Learning Targets: I can express numbers in standard form and in scientific notation. I can compare and
order numbers written in scientific notation.
Express each number in standard form. (8 points)
1. 5.72 × 104
2. 5.689 × 10−3
3. 9.01 × 10−2
4. 2.505 × 103
Express each number in scientific notation. (12 points)
5. 2,000,000
6. 0.006
7. 5,894,000
8. 0.000425
9. Humans blink about 6.25 million times a year.
10. A particle of dust floating in the air weighs 0.000000753 gram.
Page 2
Determine which symbol, <, >, or =, will make a true statement. (3 points)
11. 2.3 × 105
⃝ 1.7 × 105
12. 5.2 × 102
⃝ 5000
13. Order 6.1 × 104 , 6100, 6.1 × 10−5 , 0.0061, and 6.1 × 10−2 from least to greatest.
(2 points)
14. Write (4 × 104 ) + (8 × 103 ) + (3 × 102 ) + (9 × 10) + (6 × 100 ) in standard form.
(1 point)
15. Rank the oceans in the table at the right by area from least to greatest. (4 points)
Ocean
Arctic
Atlantic
Indian
Pacific
Area (sq mi)
5.44 × 106
3.18 × 107
2.89 × 107
6.40 × 107
Review:
Find each product or quotient. Express using exponents. (4 points)
16. 3𝑎2 ∙ 5𝑎4
17. 𝑐 5 ÷ 𝑐 2