Question

10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 + 100 = ?

ai nhanh nhất mình tick cho.

Answer 1

10+20+30+40+50+60+70+80+90+100

=(10+100)+(20+90)+(30+80)+(40+70)+(50+60)

= 110+110+110+110+110

=110x5

=550

Answer 2

= 550 nha

Answer 3

550

550

550

550

Answer 4

10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 + 100 = 550

Answer 5

đáp án là 550 nha

Answer 6

10+20+30+40+50+60+70+80+90 +100=550

Answer 7

10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 + 100

= 30 + 70 + 110 + 150 + 190

= 100 + 260 + 190

= 360 + 190

= 450 

Answer 8

10+90+20+80+30+40+60+100+50=550

Answer 9

550 nha bạn

Answer 10

10+20+30+40+50+60+70+80+90+100

=(10+90)+(20+80)+(30+70)+(40+60)+100+50

=100+100+100+100+100+50

=100 x 5 +50

=500+50

=550

Answer 11

Mình xin giúp:

     10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 + 100

=(10+90)+(20+80)+(30+70)+(40+60)+100+50

=   100   +  100   +   100   +   100   +100+50

=   100   x   5      + 50

=   500                +50

=   550