TAP MATH FINAL

• SQUARE THE NUMBER. 

7.8 X 10-7

• REMEMBER WHEN MOVING TO THE
• RIGHT IS NEGATIVE

4.7 X 100

• YES ZERO!
• 10 X 0 = 1

6.0 X 10^-2

GOING RIGHT MEANS GOING NEGATIVE!

8.84 X 10⁴

ADDED A DECIMAL SPACE TO THE ORIGINAL NUMBER.

6 X 106

• THE TAKE HOME:
• 1. WHEN MULTIPLYING EXPONENTS ADD THEM. 
• 2.THE BASES MUST BE THE SAME!

6.3 X 10¹⁰

YOU ORIGINALLY GET 63 X 10⁹ IN ORDER TO GET INTO SCI NOTE, MOVE THE DECIMAL ONE SPACE TO THE LEFT. THIS WILL MAKE 63 INTO 6.3. IT IS NOW SMALLER BY A FACTOR OF 10. SO NOW ADJUST THE EXPONENT BY ADDING ONE TO IT AND KEEPING THE CORRECT VALUE.

•     = (2.6)(9.2)(10^–8) 
•     =2.6 × 9.2 = 23.92 = 2.392 × 10 = 2.392 × 10¹
•     = (2.392 × 10¹)(10^–8) 
•     = (2.392)(10¹)(10^–8) 
•     = (2.392)(10^1–8) (ADD)
•     = 2.392 × 10^–7