question_answer

Find the value of:

(a) \[\text{(}7\text{)}8(25)\]

(b) \[\text{(}13)+3281\]

(c) \[(-7)+(-8)+(-90)\]

(d) \[50-(-40)-(-2)\]

Answer:

(a) \[(-7)-8-(-25)=-7-8+25=-15+25\]

\[=25-15=10\]

(b) \[\text{(}-\text{13)}+32-8-1=-13+32-8-1\]

\[=32-(13+8+1)\]

\[=32-22=10\]

(c) \[(-7)+(-8)+(-90)=-7-8-90\]

\[=-(7+8+90)\]

\[=-105\]

(d) \[50+(-40)-(-2)=50+40+2\]

\[=92\]