0-11=? -12-(+7)-(-4)=? сравнить -25 и 15 -18 и -8 =?

Question

0-11=?
-12-(+7)-(-4)=?
сравнить -25 и 15
-18 и -8 =?

Answer 1

1)-11
2)-12-7+4=-15
-25<15<br>18<-8

Answer 2

0-11=-11
(-12)-7-(-4)=-15
-25 <15<br>-18 <-8