Question

2+3+9+1

Answer 1

= 15

Answer 2

15

Answer 3

=15

Answer 4

15 nha bé

Answer 5

2 + 3 + 9 + 1

= 5 + 10

= 15

Answer 6

2 + 3 + 9 + 1 = 15

Answer 7

15

 

Answer 8

=5+9+1                                                                                                             =14+1                                                                                                                = 15                      

Answer 9

15 nha

Answer 10

15

Answer 11

15

Answer 12

=15

Answer 13

2+3+9+1=2+3+(9+1)=2+3+10=15

Answer 14

15

Answer 15

15

Answer 16

= 15

Answer 17

2 + 3 + 9 + 1 = 15

Answer 18

= 15

Answer 19

= 15

Answer 20

=15

Answer 21

15.

tick hộ chị với

Answer 22

15

Answer 23

15

Answer 24

=15

Answer 25

15