Sewanhaka High School
Math 8
Name:___________________________________ Per:___
Mrs. Lidowsky, Principal
Mr. Long, Teacher
Date:_________________
H.W. #10: Ditto
DO-NOW #10: Answer the following questions. Show work.
1) Kimberley has the choice of washing the car, mowing the lawn, or raking leaves on Saturday and baking a cake,
washing the dishes, or doing the laundry on Sunday. In how many ways can she choose one chore for each day?
2) Evaluate (8.23 * 106) – 391,000. Express the result in scientific notation, standard form, and calculator notation.
3) Evaluate (2.85 * 107) + (1.61 * 109). Express the result in scientific notation, standard form, and calculator notation.
Topic: The Number System
Main Idea: Multiplication with Scientific Notation
Aim:
RECALL
The volume of the moon is
20,000,000,000 and the volume of
the Earth is 450 times as much as
the moon.
How would I find the volume of the
Earth in scientific notation?
Is there an easier way to obtain my
answer?
Evaluate the following. Express
each result in scientific notation.
(2.85 * 107) • (3.16 * 10-3) =
(5.1 * 104) • (2.5 * 103) =
(3 * 104) • (3 * 104) =
(7.2 * 103) • (1.6 * 104) =
NOTES
Drill: Evaluate each. Write your answer in scientific notation.
1) (3 * 108) • (2 * 10-4)
2) (4 * 1016) • (2 * 10-12)
3) (8.4 * 102) • (2.5 * 106)
4) (2.63 * 104) • (1.2 * 10-3)
SUMMARY:
If time: Go back to the Drill and write your answer for exercises 1 to 4 in standard form and calculator notation.