Question

Ajutatima va rog day Cortana

Answer 1

Răspuns:

8.

a)+7-5-4+6+(+1-5+7-4)=

=+7-5-4+6-1=

=+3

b)+2-8-7+4-(+3-6+2-0)=

=+2-8-7+4-1=

=-10

9.

a)+9-6+[+4-8+1+(+4-3+5-1)=

=+9-6+(+4-8+1+5)=

=+9-6-2=

=+1

b)+3-6-[-1+5+7+(-4+8+9+5)=

=+3-6-(-1+5+7+18)=

=+3-6-29=

=-32

10.

a)+21-38+[-44+25+88+(-50+36)=

=+21-38+(-44+25+88-4)=

=+21-38+65=

=+48

b)+71-58+[-35-49+23-(+82+35-75)]=

=+71-58+(-35-49+23-42)=

=+71-58-103=

=-90

11.

a)+121-549+[-448+252+(+837+314+289)=

=+121-549+(-448+252+1440)=

=+121-549+1244=

=+816

b)+439-627-[-368+308-(-845+97)=

=+439-627-(-368+308-748)=

=+439-627-808=

=-996

Sper ca te-am ajutat!