Scientific Notation
Write 5,000 in scientific notation.
5 × 10³
Order these decimals from least to greatest: 0.7, 0.07, 0.77, 0.707.
0.07, 0.7, 0.707, 0.77
Convert 1/2 into a percentage.
50%
How many seconds are in 4 minutes?
240 seconds
Convert 0.25 into a fraction and a percentage.
1/4 and 25%
Write 3.2 × 10⁴ in standard form.
32,000
Which is greatest: 0.506, 0.56, 0.056, or 0.5601?
0.5601
Which is greater: 3/4 or 70%?
3/4 - 75%
A movie lasts 2 hours and 15 minutes. How many minutes is that altogether?
135 minutes
Write 6,700,000 in scientific notation.
6.7 × 10⁶
Express 0.00076 in scientific notation.
7.6 × 10⁻⁴
Order from greatest to least: 3.045, 3.405, 3.054, 3.450.
3.450, 3.405, 3.054, 3.045
Order from least to greatest: 0.6, 2/3, 65%, 0.59.
3.450, 3.405, 3.054, 3.045
A student takes 185 seconds to complete a challenge. Express this time in minutes and seconds.
3 min 5 sec
Order these numbers from least to greatest: 3/5, 0.58, 65%, 0.605.
0.58, 3/5, 0.605, 65%
Which number is greater: 4.5 × 10⁶ or 7.2 × 10⁵? Explain how you know.
4.5 × 10⁶
A student claims that 0.8 is smaller than 0.75 because 8 is less than 75. Explain why the student is incorrect.
0.8 = 0.80, which is greater than 0.75
Order from greatest to least: 7/8, 82%, 0.805, 4/5.
7/8, 82%, 0.805, 4/5
A scientist estimates that a machine will operate continuously for 3 years. Assuming 365 days per year, how many hours will the machine operate?
26,280 hours
A runner completes a race in 2 minutes and 45 seconds. Another runner finishes in 158 seconds. Who was faster, and by how many seconds?
Second runner, by 7 seconds (165 − 158 = 7)
The distance from Earth to the Sun is approximately 150,000,000 km. Write this distance in scientific notation. If a spacecraft travels 5 × 10⁷ km, what fraction of the total distance has it travelled?
1.5 × 10⁸ km; 1/3
Four runners complete a race in 12.508 seconds, 12.58 seconds, 12.085 seconds, and 12.805 seconds. Rank the runners from fastest to slowest.
12.085, 12.508, 12.58, 12.805
Four students completed different portions of a project:
Student A: 0.78
Student B: 4/5
Student C: 75%
Student D: 7/10
Rank the students from most work completed to least.
B, A, C, D
A spacecraft travels for 2 years, 45 days, 6 hours, and 30 minutes. Assuming each year has 365 days, calculate the total travel time in minutes.
1,116,390 minutes
A scientist records three measurements: 4.5 × 10⁻³, 0.0048, and 0.42%. Arrange the measurements from smallest to largest. Show your conversions.
0.42%, 4.5 × 10⁻³, 0.0048 (equivalent to 0.0042, 0.0045, 0.0048)