Question

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = ?

Answer 1

55 tích nha

^_<

Answer 2

1+2+3+8+9+10

=3+11+19

=33

nha!

Answer 3

1+2+3+4+5+6+7+8+9+10

=(1+9)+(2+8)+(3+7)+(4+6)+10+5

=10+10+10+10+10+5

=50+5

=55

Answer 4

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 

= ( 1 + 9 ) + ( 2 + 8 ) + ( 3+ 7 ) + ( 4 + 6 ) + 10 + 5

= 10 + 10 + 10 + 10 + 10 + 5 

= 10 x 5 + 5 

= 50 + 5 

= 55 

Answer 5

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55

Answer 6

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 +9 +10 = 55

Answer 7

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 =(10+1)x10:2=110:2=55

Answer 8

   1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10

= ( 1 + 9 ) + ( 2 + 8 ) + ( 3 + 7 ) + ( 4 + 6 ) + 10

= 10 + 10 + 10 + 10 + 10

= 50

Các bạn nhớ k cho mình nhé

Answer 9

=(1+9)+(2+8)+(4+6)+(10+5)

=10+10+10+15

=45

Answer 10

 1+2+3+4+5+6+7+8+9+10

=(1+10)+(2+9)+(3+8)+(4+7)+(5+6)

=11+11+11+11+11

=11x5

=55

Answer 11

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 

=(1+10)+(2+9)+(3+8)+(4+7)+(5+6)

=11+11+11+11+11

=11x5

=55

Answer 12

55.kb nha