( – 200) – 400 ( – 720 ) – ( – 20) 600 – ( – 400 ) (-400) – (-600)

2 bình luận về “( – 200) – 400 ( – 720 ) – ( – 20) 600 – ( – 400 ) (-400) – (-600)”

1. $\text{+) (-200) – 400 = -200 -400 = -600 }$

   $\text{+) (-720 ) – ( – 20 ) = -720 + 20 = -700 }$

   $\text{+) 600 – ( – 400 ) = 600 + 400 = 1000 }$

   $\text{+) ( – 400 ) – (- 600) = – 400 + 600 = 200 }$

   =]]

   Trả lời
2. (-200)- 400= -600

    (-720)-(-20)=-700

   600-(-400)=1000

   (-400)-(-600)=200

    

   Trả lời