Standard Form & Indices

3.78 x 10^{4 = ?}

Heri, Titi, and Ratna are planning a trip from the south pole to the north pole, which is a distance of 12 714 km. How would you write this distance in standard form?

• 12.714 x 10³ km

• 1.2714 x 10⁵ km

• 127.14 x 10² km

• 1.2714 x 10⁴

0.000 000 001 309

Write in standard form.

• 1.309 x 10⁹

• 1.309 x 10^-8

• 13.09 x 10^-10

• 1.309 x 10^-9

Hey there! Faisal, Eko, and Siti are on a mission to solve a tricky problem. Nitrogen weight is 1.401 x 10⁵ micrograms. The mass of nitrogen is 0.0000001% of the mass of dust. Can you help them figure out the mass of dust in standard form?

• 1.401 x 10¹²

• 1.401 x 10¹⁴

• 1.401 x 10^-4

Hey there! Let's play a game of comparison:

Rizky, Rizal, and Tiara are competing to solve the following:

a) 4.98 x 10^-2___1.34 x 10^-1

b) 7.98 x 10⁴___7.9 x 10⁵

c) 5.981 x 10²___1.098 x 10^-1

• a) >

  b) <

  c) =

• a) <

  b) <

  c) >

• a) <

  b) =

  c) >

write in ordinary number 5.7 x 10^-3

What is the result when Phytagoras adds 4.6 x 10³ and 6.7 x 10³ together?

Express your answer in standard form.

• 11.3 x 10³

• 1.13 x 10⁴

• 1.13 x 10²

• 11.3 x 10⁴

How do you find the square of a number?

• Convert the numbers into scientific notation by using powers of 10.

• Multiply the number by itself.

Hey there! Can you tell me what 100 000 is as a power of 10?

• 10⁵

• 10⁶

• Give the number a high-five!

• 3³

• 3^-3

• 2⁴