Download presentation

Presentation is loading. Please wait.

Published byPosy Miles Modified over 9 years ago

1
Using Scientific Notation in Multiplication and Division Lesson Two and Lesson Three

2
WARM UP

3
EXAMPLE ONE GIVEN: (2.93 X 10 -2 ) (8.3 X 10 -5 ) MULTIPLY DECIMALS: 2.93 X 8.3 = 24.319 ADD EXPONENTS: 10 -2 X 10 -5 =10 -2+(-5) =10 -7 ANSWER: 24.319 X 10 -7 REWRITE IN SCIENTIFIC NOTATION FINAL ANSWER: 2.43 X 10 -6

4
EXAMPLE TWO GIVEN: 3.42 X 10 5 4.67 X 10 9 MULTIPLY DECIMALS: 3.42 X 4.67 = 15.97 ADD EXPONENTS: 10 5 X 10 9 =10 5+9 =10 14 PRELIMINARY ANSWER: 15.97 X 10 14 NOW, REWRITE IN SCIENTIFIC NOTATION IF NEEDED. FINAL ANSWER: 1.597 X 10 15

5
Let’s try three together…… (2 x 10 3 ) (3 x 10 5 ) (3.2 x 10 -5 ) x (1.5 x 10 -3 ) ( (9.2 x 10 5 ) x (2.3 x 10 7 )

6
CLASSWORK Work with your partner to complete the scientific notation worksheet using multiplication.

7
HOMEWORK Complete the scientific notation worksheet using multiplication. Show all your work.

8
WARM UP

9
EXAMPLE THREE GIVEN: 3.45 X 10 2 1.23 X 10 -5 DIVIDE DECIMALS: 3.45 ÷ 1.23= 2.81 SUBTRACT EXPONENTS: 2- (-5) = 7 REWRITE IN SCIENTIFIC NOTATION IF NEEDED ANSWER: 2.81 X 10 7

10
EXAMPLE FOUR

11
Let’s try three together….. (8 10 6 ) ÷ (2 10 3 )(5.76 x 10 2 ) ÷ (4.55 x 10 -4 ) (8.2 x 10 -6 ) / (9.4 x 10 -3 )

12
CLASSWORK With your partner, work through the division problems. Show all your work.

14
HOMEWORK Complete the scientific notation worksheet using division. Show all your work.

15
Need help? Watch the following videos. www.youtube.com/watch?v=ciFOlirz4Js Scientific Notation: multiplication/division Scientific Notation: https://www.youtube.com/watch?v=GD5LbqSqKys

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google