Question

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19=?

Answer 1

=190

minh lam dau tien nha

Answer 2

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19

=(1+19)+(2+18)+(3+7)+(4+16)+(5+15)+(6+14)+(7+13)+(8+12)+(9+11)+10

=  20+20+20+20+20+20+20+20+20+10

=190

Answer 3

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19

= (1+19)+(2+18)+(3+17)+(4+16)+(5+15)+(6+14)+(7+13)+(8+12)+(9+11)+10

= 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 10

= 20 x 9 + 10

= 180 + 10

= 190

Answer 4

190 đúng ko hihi

Answer 5

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19=190

Answer 6

=190 nha ,boo boo boo

Answer 7

=190 nha boo boo boo

Answer 8

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19=190

Answer 9

=190 các cậu tích đi

Answer 10

=190 nha cau