Question

Tính nhanh : 

20.05*14+40.1*16+16+60.15*18

Nếu bạn nào biết giúp mik nha sáng mai mik nọp rui 

Ai nhanh mik tich

 

Answer 1

  20,05*14+40,1*16+60,15*18

=20,05*14+20,05*2*16+20,05*3*18

=20,05*14+20,05*32+20,05*54

=20,05*(14+32+54)

=20,05*100

=2005

Answer 2

20,05*14+40,1*16+16+60,15*18

=20,05*14+20,05*2*16+20,05*3*18+16

=20,05*14+20,05*32+20,05*54+16

=20,05*(14+32+54)+16

=20,05*100+16

=2005+16

=2021