Applying Scientific Notation
Math 8
Megan’s dad is 6 feet tall. Her little sister is 3 feet tall. How many times larger is Megan’s dad than her little sister?
division
2 times larger
About 23 times larger, meaning 23 countries the size
of the US would make up the entire world population
units cancel
Earth sized planets could fit inside the Sun
division
subtraction
Wyoming has more deer because
the exponent on the 10 is higher
units don’t cancel
The areas of the world’s oceans are listed in the table. What is the combined area of the Arctic, Southern, Indian, & Atlantic oceans?
addition
units don’t cancel
units don’t cancel
division
Colorado
Utah
multiply
these units cancel
multiply
division
There are about 200 million insects for every person on earth. In 2018 the world’s population was about 7.6 billion people.
How many insects are on earth?
multiply
Addition | Subtraction |
Multiplication | Division |
combined
Keywords for Operations
total
sum
difference
by how much
how many more
how much greater
area
quantity by quantity
(often units cancel)
times larger
per
times as great
density
average