Opposite
Adjectives
A/An
Spelling Plurals
Possessive Adjectives
Numbers
100

dangerous

safe

100

umbrella

AN umbrella

100

pen

penS

100

I

MY

100

14

fourteen

200

low

high

200

ink pen

AN

200

box

boxES

200

he

HIS

200

60

SIXTY

300

far

near

300

Minecraft creeper! 

A

300

church

churchES

300

it

ITS

300

15

FIFTEEN

400

poor

expensive

400

X-ray

AN

400

creeper

creeperS

400

They

THEIR

400

50

FIFTY

500

full

empty

500

Unicorn

A

500

variable

variableS

500

we

OUR

500

9,000,000

NINE MILLION