Yr9 numbers of any magnitude Quiz

Reorder the following numbers from smallest to largest:

• 3.71 x 10⁸

• 9.98 x 10^-6

• 1.50 x 10^-2

• 5.71 x 10²

• 3.72 x 10⁸

The number 0.00741 can be written in scientific notation as:

7.41 x 10^??

What is the missing exponent on the 10?

Mathematical Equivalence

ON

The number 3.50 can be written in scientific notation as:

3.50 x 10^??

What is the missing exponent on the 10?

Mathematical Equivalence

OFF

Imagine Abigail, Rohan, and Zoe are transporting freight across the galaxy. Each of them pilots a spaceship traveling at an incredible speed. Which spaceship represents the largest value of speed?

• Abigail's spaceship: 2.35 x 10⁵ m/s

• Rohan's spaceship: 9.78 x 10³ m/s

• Zoe's spaceship: 5.01 x 10⁴ m/s

• The mysterious alien spaceship: 1.101 x 10⁶ m/s

In the year 3020, a scientist records the energy output of a star in a distant galaxy. Which energy output is correctly written in scientific notation?

• 8.2 x 10²

• 82 x 10⁷

• 3.45 x 9⁴

Scientific notation is a way to write very large and very (a)   numbers written using a number ​ (b)   by a power of ​ (c)   .

• small
• multiplied
• ten

Convert 4.6 x 10^-5 to standard form.

• 0.0000046

• 0.000046

• 0.00045

• 0.00046

Match the number with its correct number of significant figures

• 3

• 0.050

• 4

• 0.1019

• 1

• 45.001

• 2

• 9000

• 5

• 619

Round 659.351 to 2 significant figures

Round 0.0542732 to 3 significant figures

• 0.054

• 0.0542

• 0.0543

• 0.05