问题
填空题
计算:13+23+33+43+…+993+1003的值为______.
答案
13+23+33+43+…+993+1003
=(1+2+3+…+100)2
=50502
=25502500.
故答案为:25502500.
计算:13+23+33+43+…+993+1003的值为______.
13+23+33+43+…+993+1003
=(1+2+3+…+100)2
=50502
=25502500.
故答案为:25502500.