Question

Bài 1 : Tính 

 10 + 10 = 

20 + 20 =

30 + 30 =  

40 + 40 =

Answer 1

10+10=20

20+20=40

30+30=60

40+40=80

tk mk

Answer 2

10+10=20

20+20=40

30+30=60

40=40=80

Answer 3

10 + 10 = 20

20 + 20 = 40 

30 + 30 = 60 

40 + 40 = 80

Answer 4

khó thế ahihi

Answer 5

10+10=20

20+20=40

30+30=60

40+40=80

Answer 6

10 + 10 = 20

20 + 20 = 40

30 + 30 = 60

40 + 40 = 80

Answer 7

10-10=0

20+20=40

30+30=60

40+40=80

Answer 8

10+10=20 20+20=40 30+30=60 40+40=80 k nha

Answer 9

10+10=20

20+20=40

30+30=60

40+40=80

Answer 10

10+10=20

20+20=40

30+30=60

40+40=80

Answer 11

10 + 10 = 20

 20 + 20 = 40 

30 + 30 = 60 

40 + 40 = 80

Answer 12

10+10=20

20+20=40

30+30=60

40+40=80

Answer 13

10+10=20 20+20=40 30+30=60 40+40=80

Answer 14

10 + 10 = 20

20 + 20= 40

30 + 30= 60

40+40 =80

Chúc bn hok giỏi$$$$

Answer 15

10+10=20 / 20+20=40 / 30+30=60 / 40+40=80

Answer 16

Bài 1: Tính

a, 10 + 10 =20

b, 20 + 20 = 40

c, 30 + 30 = 60

d, 40 + 40 = 80

Answer 17

10+10=20

20+20=40

30+30=60

40+40=80

Answer 18

10+10=20

20+20=40

30+30=60

40+40=80