Question

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

Answer 1

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

Chúc bạn học tốt nhé !

Answer 2

10+20+30+40+50+60+70+80+90+100=(10+90)+(20+80)+(30+70)+(40+60)+50+100=100+100+100+100+50+100=(100+100+100+100+100)+50=500+50=550

Answer 3

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

Answer 4

(10+90)+(20+80)+(30+70)+(40+60)+(50+100)=100+100+100+100+150=400+150=550

Answer 5

100+10 = 110

90+20 =110

...............

...............

...............

50+60 =110

như vậy sẽ có 5 cặp như vậy, mỗi cặp có tổng là 110

tổng sẻ bằng : 110 x 5= 550

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=550

HT:>

Answer 8

bằng 550

Answer 9

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