1. Operations with Scientific Notation

2. Addition & Subtraction
(3 x 104) + (5 x 104)
Step 1: Both are numbers multiplied by 104
Step 2: I can add the first factors and leave the base ’s the same
(3 + 5) x 104
8 x 104

3. Addition & Subtraction
(20 x 104) + (5 x 104)
Step 1: Both are numbers multiplied by 104
Step 2: I can add the first factors and leave the base ’s the same
(20 + 5) x 104
25 x 104
2.5 x 105

4. Addition & Subtraction
(9 x 103) – (6 x 103)
Step 1: Both are numbers multiplied by 103
Step 2: I can add the first factors and leave the base ’s the same
(9 - 6) x 103
3 x 103

5. Addition & Subtraction
(20 x 103) – (8 x 103)
Step 1: Both are numbers multiplied by 103
Step 2: I can add the first factors and leave the base ’s the same
(20 - 8) x 103
12 x 103
1.2 x 104

6. Addition & Subtraction
(1.1 x 104) + (2.9 x 104)
Step 1: Both are numbers multiplied by 104
Step 2: I can add the first factors and leave the base ’s the same
( ) x 104
4 x 104

7. Addition & Subtraction
(3.5 x 103) – (2.5 x 103)
Step 1: Both are numbers multiplied by 103
Step 2: I can add the first factors and leave the base ’s the same
(3.5 – 2.5) x 103
1.0 x 103

8. Examples (3 x 104) + (5 x 104) (8 x 107) - (4 x 107)

9. Examples (3.2 x 102) + (2.8 x 102) (5.0 x 109) - (2.5 x 109)

10. Multiplication & Division
(2 x 103)(2 x 103)
Step 1: Multiply the first factors (2 x 2)
Step 2: Use your laws of exponents
(2 x 2) x (103 * 103 )
4 x 106

11. Multiplication & Division
(3 x 104)(2 x 102)
Step 1: Multiply the first factors (3 x 2)
Step 2: Use your laws of exponents
(3 x 2) x (104 * 102 )
6 x 106

12. Multiplication & Division
(12 x 105)÷(4 x 103)
Step 1: Multiply the first factors (12 ÷ 4)
Step 2: Use your laws of exponents
(12 ÷ 4) x (105 ÷103 )
3 x 102

13. Multiplication & Division
(2 x 103)(6 x 103)
Step 1: Multiply the first factors (2 x 6)
Step 2: Use your laws of exponents
(2 x 6) x (103 * 103 )
12 x 106
1.2 x 107

14. Multiplication & Division
(7 x 106)(3 x 103)
Step 1: Multiply the first factors (7 x 3)
Step 2: Use your laws of exponents
(7 x 3) x (106 * 103 )
21 x 109
2.1 x 1010

15. Examples (3 x 104)(3 x 104) (1 x 107)(2 x 107) (6 x 106)(5 x 106)

16. Examples (8 x 105) ÷ (4 x 102) (9 x 1019) ÷(3 x 109)

17. Assignment – Due Thursday
Bring Your Textbook Please
Complete – Page 48
Check Your Understanding
Copy Questions and Complete - 1, 2, 6, 7
Word Problems - 8, 9, 10, 11
Class 2
– Continue Work