1. 1? = 1
Two, two? =4
Three, three? =9
Four, four? = 16
Five. Five? =25
Six, six? =36
Seven, seven? =49
Eight, eight? =64
Nine, nine? =8 1
X. 10? = 100
Xi. 1 1? = 12 1
12. 12? = 144
XIII. 13? = 169
Fourteen, 14? = 196
Fifteen, 15? =225
16. 16? =256
Seventeen, 17? =289
18. 18? =324
Nineteen, 19? =36 1
Teaching content: mathematics, experimental teaching material of compulsory education curriculum standard (People's Education Edition), sixth grade, wid