Question

98 + 99 + 100 + 101 +102 = ?

Answer 1

98 + 99 + 100 + 101 + 102

= (98 + 102) + (99 + 101) + 100

= 200 + 200 + 100

= 200 x 2 + 100

= 400 + 100

= 500

Answer 2

ta lấy

(98+102)+(99+101)+100=500

Answer 3

98+99+100+101+102= (102+98)*5/2=200*5/2=1000/2=500