Question

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

Answer 1

45 cạu ạ

Answer 2

45 bạn ơi

Answer 3

1 + 2 + 3 +  5+ 6 + 7 + 8 + 9 = 45

Answer 4

1+2+3+4+5+6+7+8+9=45

Answer 5

ai mjk mjk k lai

Answer 6

= 45 nhá

Answer 7

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

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

= 10+10+10+10+5

= 45

Answer 8

(1+9)*9:2=45