Numeral Prefixes
Say the Symbol
Numbers in Words
Name that Function
Misc.
100

A cycle with only one wheel is called...

Unicycle (uni-)

100

+

plus

100

Say in words: 3 + 4 = 7

three plus four equals seven

100

Three and four is seven

addition

100

Say in words: 1/2

one half 

or 

a half

200

How many years are in one decade?

Ten (dec-)

200

=

equal(s)

200

Say in words: 8 – 5 = 3

eight minus five equals three

200

Eight take away five is three

subtraction

200

Two lines that run side by side and never meet (intersect)

parallel lines 

=

ll

300

How many sides does a hexagonal figure have?

6 (hex-)

300

÷

divide or divided by

300

Say in words: 3 x 2 = 6

three multiplied by two equals six

300

Three times two is six

multiplication

300

Say in words: 1/4

one quarter

or

a quarter

400

What is the prefix meaning 100?

cent

400

%

per cent

400

Say in words: 12 ÷ 4 = 3

twelve divided by four equals three

400

Four goes into twelve three times

division

400

Say in words: 1/3

One third 

or

a third


500

How many languages can a trilingual person speak?

Three (tri-)
500

.

point

500

Say in words: 24  ̊

twenty four degrees

500

Take five from eight

subtraction

500

Two lines that meet or cross (intersect)

perpendicular lines 

x + L