=(1+9)+(3+7)+(2+4+5)+10
=10+10+11+10
=10*3+11
=30+11
=41
1+2+3+4+5+6+7+8+9+10
=( 9+1 ) + ( 8+2 ) + ( 7+3 ) + ( 6+4 ) + 10+ 5
= 10 + 10 +10 +10 + 10 +5
=20 + 20 + 15
= 40 + 15
= 55
1+2+3+4+5+7+9+10
=(1+9)+(3+7)+(2+9)+10
=10+10+11+10
=(10+10+10)+11
=30+11
=41
Tick cho minh nha khoa!!!!
nào tick cho mình thì mình sẽ tick cho
1+2+3+4+5+6+7+8+9+10
=(1+9)+(2+8)+(3+7)+(4+6)+5+10
= 10 + 10 + 10 + 10 +5+10
=55
1+2+3+4+5+6+7+8+9+10
=(1+9)+(2+8)+(3+7)+(4+6)+5+10
=10+10+10+10+10+5
=10 x 5+5
=50+5
=55
Ta có:1+2+3+4+5+6+7+8+9+10
=(1+9)+(2+8)+(3+7)+(4+6)+5+10
=10+10+10+10+5+10
=10x5+5
=50+5
=55
[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[
1 + 2 +3 +4 + 5 + 6 +7 + 8 + 9 +10 =55
1+2+3+4+5+6+7+9+10=(1+9)+(3+7)+(4+6)+10+(2+5)=10+10+10+10+7=40+7=47
1+2+3+4+5+7+9+10=[1+9]+[3+7]+[4+2+9]+10
= 10+10+15+10
=45
1 + 2 +3 + 4 + 5 + 6 + 7 + 8 +9 +10
= ( 1 + 9 ) + ( 2 + 8 ) + ( 3 + 7 ) + (4 + 6 ) +5
= 10 + 10 + 10 + 10 + 5
=55
nhớ kick mình nhé !
=(1+9)+(3+7)+(2+4+5)+10
=10+10+11+10
=41
1+2+3+4+5+7+9+10
=(1+9)+(2+8)+(2+4+5)+10
=10+10+11+10
=41
1 + 2 + 3 + 4 + 5 + 7 + 9 + 10
= ( 1+ 9 ) + ( 3 + 7 ) + ( 10 + 0 ) + ( 2 + 4 + 5 )
= 10 + 10 + 10 + 11
= 20 + 21
= 41