12 - 13 + 14 - 15 + 16
= -1+ (-1) + 16
= 0 + 16 = 16
18 - 16 + 14 - 12 + 10 - 8
= 2 + 2 + 2 = 6
12-13+14-15+16=(-1)+(-1)+16=(-2)+16=14
18-16+14-12+10-8=2+2+2=6
12 - 13 + 14 - 15 + 16 = 14
18 - 16 + 14 - 12 + 10 - 8 = 6
ak mà toán lớp 5 mà sorry!!!!!!!
5676
(12-13)+(14-15)+16
=-1+-1+16=14
(18-16)+(14-12)+(10-8)=2+2+2=6
Nha bạn
= (12-13)+(14-15)+16
= (-1)+(-1)+16
= -2+16
= 16-2
= 14
12- 13 +14-15+16=<12-13>+<14-15>+16= -1+<-1>+16
=-2+16
=14
18-16+14-12+16=<18-16>+<14-12>+16= 2+2+16
=20
( 13+14+16)-(12+15)=14
(18-16)+(14-12)+(10-8)=6
12 - 13 + 14 - 15 + 16
= -1 + -1 + 16
= -2 + 16
= 14
12 - 13 + 14 - 15 + 16
= 14
18 - 16 +14 - 12 + 10 - 8
= 6
12-13+14-15+16=(12+16)-(13+15)+14=18-18+14=0+14=14
18-16+14-12+10-8=(18-16)+(14-12)+(10-8)=0+0+0=0