Operations with Rationals

Fractions

100

What is the top of a fraction called?

Numerator

200

1/2 + 3/2

2

300

2 2/3 + 2 1/3

5

400

7/8 - 9/11

5/88

500

3/5 / 4/7

1 1/20

Integers

100

(-16) + (-7)

-23

200

-2 + 5

3

300

-8 - (-12)

4

400

(-8) x (-8)

64

500

8 x (-3) x 2

-48

Decimals

100

When dividing decimals, if the number outside has a decimal what do you do?

Move the decimal to the right to work with a whole nbumber. 

200

1.2 - 1

.2

300

3.005 - 2.1

0.905

400

8.5 x 5.2

44.2

500

5.5 / 1.1

5

Vocab

100

What is the bottom of a fraction called?

Denominator

200

A decimal that repeats a pattern is called...

Repeating

300

A decimal that does not end is called??

non terminating decimal

400

The point (0,0) is called the

Origin

500

The average of a set of numbers is also known as the...

mean

Extra

100

1/2 + .5

1

200

.25 / 1/4

1

300

.125 x (-1/5)

- 1/40

400

What is the difference between whole numbers and counting numbers?

Whole numbers include 0, counting numbers don't

500

(-8) + (-1/2) + (-.25)

- 8 3/4