Question

10 +20 = ? 

20 +30 = ? 

30 +40 = ? 

40 +50 = ?

 

Answer 1

10+20=30

20+30=50

30+40=70

40+50=90

kban nha va tk nua

Answer 2

10 + 20=30

20 + 30=50

30 + 40=70

40+50=90

Answer 3

30

50

70

90

Answer 4

10+20=30

20+30=50

30+40=70

40+50=90 nhớ k cho milk nha

Answer 5

10 +20 = 30

20 +30 = 50

30 +40 = 70

40 +50 = 90

k mk nha``Uzumaki Naruto

Answer 6

10+20 = 30 

20+30 = 50 

30+40 = 70 

40+50 = 90 

đáp số ......

h nha

Answer 7

10+20=30

20+30=50

30+40=70

40+50=90

Answer 8

10 + 20 = 30

20 + 30 = 50

30 + 40 =70

40 + 50 =90

nhớ k cho mình nhé

Answer 9

10+20=30

20+30=50

30+40=70

40+50=90

Đúng đó , k mk nha bn!

Answer 10

10 +20 = 30

20 +30 = 50

30 +40 = 70

40 +50 = 90

Answer 11

10+20=30

20+30=50

30+40=70

40+50=90

Answer 12

30

50

70

90