Question

a) -16+{-5+[4.(3.5-7.4+3.8)]}
b) -8+{-6+[3-(7.3-4.5)]}​

Answer 1

a)-16+{-5+[4.(3.5-7.4+3.8)]}=

-16+{-5+[4.(15-28+24)]}=

-16+{-5+[4.11]}=

-16+{-5+44}=

-16+39=23

b)-8+{-6+[3-(7.3-4.5)]}=

-8+{-6+[3-(21-20)]}=

-8+{-6+[3-1]}=

-8+{-6+2}=

-8+(-4)=

-8-4=-12