\(10+11+12+13+14+15+16+17+18+19=145\)
10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19
= ( 19 + 11 ) + ( 12 + 18 ) + ( 13 + 17 ) + ( 14 + 16 ) + 10 + 15
= 30 + 30 + 30 + 30 + 10 + 15
= 145
\(10+11+12+13+14+15+16+17+18+19=145\)
Haizz ức chế cảnh mý bn ý được tk mà mk ko được tk quá !! T_T
10+11+12+13+14+15+16+17+18+19 =145 nhá
10+11+12+13+14+15+16+17+18+19=145
10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19
= ( 10 + 19 ) + ( 11 + 18 ) + ( 12 + 17 ) + ( 13 + 16 ) + ( 14 + 15 )
= 29 + 29 + 29 + 29 + 29
= 29 x 5
= 145
10+11+12+13+14+15+16+17+18+19
=(11+19)+(12+18)+(13+17)+(14+16)+(15+10)
=30+30+30+30+25
=30x4+25
=120+25
=145
10 + 11+ 12+ 13+ 14+ 15 +16 +17+ 18+19=145