Question

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

2+2+2+2+2+2+2+2+2+2=

10+20+30+49+50+60+70+80+90=

Kb nhaaaaa hjjjjjj mk tk chooo

Answer 1

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

2+2+2+2+2+2+2+2+2+2= 20

10+20+30+49+50+60+70+80+90= 459

Answer 2

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

2+2+2+2+2+2+2+2+2+2=20

10+20+30+40+50+60+70+80+90=450

Học tốt tích rồi mình kết bạn cho

Answer 3

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

2+2+2+2+2+2+2+2+2+2=20

10+20+30+49+50+60+70+80+90=450

Answer 4

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

2+2+2+2+2+2+2+2+2+2=20

10+20+30+40+50+60+70+80+90=450

Answer 5

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

2+2+2+2+2+2+2+2+2+2=20

10+20+30+49+50+60+70+80+90=450

Answer 6

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

2+2+2+2+2+2+2+2+2+2=20

10+20+30+40+50+60+70+80+90=450

Answer 7

45

20

450

Answer 8

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

= 10 + 10 + 10 + 10 + 5 = 55

2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2

= 2 x 10 = 20

10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 = ( 10 + 90 ) + ( 20 + 80 ) + ( 30 + 70 ) +  ( 40 + 60 ) + 50

= 100 + 100 + 100 + 100 + 50 =450

Answer 9

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

2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 20

10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 = 450

Answer 10

a = 45

b=20

c=459

k cho mình nhé

Answer 11

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

2+2+2+2+2+2+2+2+2+2 = 20

10+20+30+40+50+60+70+80+90 = 450

Answer 12

câu một : 45

câu hai :20

câu 3 : 459

Answer 13

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

2+2+2+2+2+2+2+2+2+2=20

10+20+30+49+50+60+70+80+90=459

tk mk nha mn