Scientific Notation

Put into scientific notation: 23,500

• $2.35\ \times\ 10^4$

• $23.5\ \times\ 10^4$

• $2.35\ \times\ 10^3$

Write in standard form:  $4.569\ \times\ 10^6$  

• 45,690,000

• 4,569,000

• 456,900

Write in scientific notation: 94,512,000

• $94.512\ \times\ 10^6$

• $9.4512\ x\ 10^6$

• $9.4512\ \times\ 10^7$

Write in standard form:  $6.219\ \times\ 10^3$  

• 6,219

• 621.9

• 62.19

Write in scientific notation: 0.000731

• $7.31\ \times\ 10^{-4}$

• $7.31\ \times\ 10^4$

• $7.31\ \times\ 10^{-3}$

Why do we use scientific notation?

• Because Mrs. Ribeiro said so!

• I don't know

• It is an easier way to write really big or really small numbers

Which are written correctly in scientific notation? (more than one answer)

• $9.35\ \times\ 10^8$

• $93.5\ \times\ 10^{-4}$

• $17.345\ \times\ 10^3$

• $3.156\ \times\ 10^9$

Put into scientific notation: 0.000004578

• $4.578\ \times\ 10^{-5}$

• $4.578\ \times\ 10^{-6}$

• $45.78\ \times\ 10^{-6}$

 $8.934\ \times\ 10^{-9}$  Put into standard form:

• 0.000008934

• 0.00000008934

• 0.000000008934

Put into standard form: 0.00000218

• $2.18\ \times\ 10^{-5}$

• $2.18\ \times\ 10^{-6}$

• $21.8\ \times\ 10^{-6}$