Rational Numbers

It's Scientific Man

100

Write 63,200,000 in Scientific Notation

6.32 x 10⁷

200

Write 9,650,000,000 in Scientific Notation

9.65 x 10⁹

300

Write $3.6 billion in Standard Form

$3,600,000,000

400

Write 7.6 x 10⁵ in Standard Form

760,000

500

Fix this so it is in correct Scientific Notation:

.86 x 10⁴

8.6 x 10³

What the Decimal?

100

Use 9 and -100 to make a fraction and convert it to a decimal.

9/-100 = -0.09

200

What is -32/10,000 in decimal form?

-0.0032

300

Write 4.006 as a mixed number

4 6/1000

400

What is 3265/100 in decimal form?

32.65

500

Write -6.03 as a fraction.

-603/100

OH NO Not Story Problems!!!

100

Alice has a piece of cloth that is 5/9 inches long.  If she cuts off a piece that is 1/3 inch long, how much is left?

5/9 - 1/3 = 2/9 inch

200

Mark earned $10.80, which he put into his checking account.  Then he went out and bought dinner for $9.70 and gum for $.50.  How much does he have left?

$10.80 - $9.70 - $.50 = $.60

300

3/5 of a number is 45.  What is the number?

3/5x = 45 so x = 75.

400

Fred is making cookies.  He is cutting the recipe down so he only needs 25% of each ingredient.  If the original recipe calls for 3/4 cup of brown sugar, how much does Fred need?

.25 x 3/4 = 3/16 cup

500

A shirt that is discounted by 6/10 of its original price now costs $10.  What was the original price?

.4p = 10 so p = $25

Add, Subtract, Multiply or Divide, Oh My!

100

-1.9 - (-6.2) = 

4.3

200

-1/6 - 6/9 = 

-15/18  or -5/6

300

(-0.4)³

-.064

400

7 1/3 / (-2/6) = 

-22

500

1.05 / .007 = 

150

Why So Complex?

100

Simplify:

 7/9
-----
 10

7/90

200

Simplify:

 5/10
------
  1/3

1 5/10 or 1 1/2 or 1.5

300

Which is more?
.7

 or
__
.7

How much more?

__        _
.7 is 0.07 more

400

Write 8/6 as a decimal.

   _
1.3

500

1/3 x (-6 2/15) = 

-2 2/45