Question

2+1=

lớp 8 mà bài lớp 9 nên không làm được

Answer 1

ggggggggggggggggggggggggggggdddddddddddddddddddaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answer 2

2+1=1+2=2+1=1+2=2+1=1+2=2+1=1+2=2+1=0+3=3+0=0+3=3+0=0+3=3+0=3

Answer 3

2+1 = 1+1+1=1x3=3