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100
Add "ham" to the beginning of the word "burger". 
hamburger
100
Remove "pine" from "pineapple"
apple
100
America
A-mer-i-ca
100
kindergarten
4
100
rec-tang-le
rectangle
200
Add "est" to the end of the word "happy"
happiest
200
remove "bug" from "ladybug"
lady
200
marshmallow
Marsh-mal-low
200
motorcycle
4
200
bar-be-cue
barbecue
300
add "tion" to the end of the word "subtract"
subtraction
300
remove "ball" from "basketball"
basket
300
tomorrow
to-mor-row
300
butter
2
300
con-ver-sa-tion
conversation
400
add "straw" to the beginning of the word "berry"
strawberry
400
remove "grand" from "grandfather"
father
400
watermelon
wa-ter-mel-on
400
president
3
400
ther-mom-e-ter
thermometer
500
add "tooth" to the beginning of "brushes"
toothbrushes
500
remove "grass" from "grasshopper"
hopper
500
helicopter
hel-i-cop-ter
500
catch
1
500
caf-e-ter-i-a
cafeteria