Question

Answer 1

a)

\(=80-\left(4\cdot25-3\cdot8\right)=80-\left(100-24\right)=80-76=4\)

b)

\(=144-4\left(5\right)^2:4-1=144-4\cdot25:4-1=144-25-1=118\)

c)

\(=125\cdot176-\left(125\cdot51+3125\right)=22000-9500=12500\)

d)

\(=303-3\cdot\left[655-10\cdot4^3+5\right]:1=303-3\cdot\left[655-10\cdot64+5\right]:1=303-3\cdot20:1=303-60=243\)