Dictionary/Vocabulary
Addition
Subtraction
Irregular Plural Nouns
100

The space between two hills or mountains is called

valley

100

23+57

80

100

22-18

4
100

What is the plural form of the word mouse?

mice

200

A natural feature on earth's surface

landform
200

65+36

101

200

20-12

8

200

Plural form of person

people
300

A wind that spins and shapes like a funnel

tornado

300

83+29

112

300

34-25

9
300

Plural form of tooth

teeth

400

To tear apart or break is to cause____

damage
400

25+25

50

400

53-29

44

400

What is the singular form of shelves?

shelf

500

What are the stages in the water cycle?

evaporation-condensation-precipitation

500

100+50

150

500

71-27

44

500

What is the singular form of woman?

women

M
e
n
u