TEKS.MATH.8.2C

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

Tags

TEKS.MATH.8.2C

How do you write
1001
in scientific notation?

• 1.0001 x 10⁴
• 1.01 x 10⁵
• 1.001 x 10³
• 10.1 x 10³

Tags

TEKS.MATH.8.2C

Convert the decimal 0.06 into percentage

• 6%
• 60%
• 0.6%
• None of the above

Tags

TEKS.MATH.8.2C

Write in scientific notation: 
0.0000378 

• 3.78 x 10^-5
• 3.78 x 10^-6
• 0.378 x 10^-5

Tags

TEKS.MATH.8.2C

4. Find the combined mass of Earth and Venus. Earth is approximately 5.9 x 10²⁴ kg and Venus is approximately 4.9 x 10²⁴ kg.

• Add
• Subtract
• Multiply
• Divide

Tags

TEKS.MATH.8.2C

Give the sum of (8.7 x 10^-7) + (3.23 x 10^-5)

• 1.193 x 10^-12

• 3.317 x 10^-5

• 3.317 x 10^-12

• 5.53 x 10^-2

Tags

TEKS.MATH.8.2C

1. The pitch of a sound is determined by the number of vibrations produced per second. The note “middle C” produces 2.62 x 10² vibrations per second. If a pianist plays middle C for 5 x 10^-1 seconds, how many vibrations will occur? Which operation would you use to solve this problem?

• Addition

• Subtraction

• Multiply

• Divide

Tags

TEKS.MATH.8.2C

Dylan traveled 1 × 10⁵ miles last year. This year he has traveled 3 × 10⁷ miles. How many miles has he traveled altogether the past two years?

• 3.0 x 10¹² miles 
• 4.0 x 10¹² miles
• 3.01 x 10⁷ miles
• 3.10 x 10⁷ miles

Tags

TEKS.MATH.8.2C

Which of the following represents 3,280 written in scientific notation?

• 3.28 x 10⁻³

• 3.2 x 10³

• 3.28 x 10³

• 0.328 x 10⁴

Tags

TEKS.MATH.8.2C

Write in scientific notation. -318000

• -3.18 x 10⁶

• -3.18 x 10^-6

• -3.18 x 10⁵

• -3.18 x 10^-5

Tags

TEKS.MATH.8.2C