\newproblem{ \FPsetpar{a}{12}{15} \FPsetpar{b}{13}{15} \FPsetpar{c}{2}{4} \FPsetpar{k}{4}{5} \begin{problem}[4] $a=\a$, $b=\b$, $c=\c$, $k=\k$ Evaluate $\a-\c=$\fillin[b]{1cm}{$\FPsv{a-c}$} $ \b:\k$ with two exact decimals \fillin[b]{1cm}{$\FPsv[2]{b/k}$} and $\k^{\c}$=\fillin{20pt}{$\FPsv{k^c}$} \end{problem} } \newproblem{ \FPsetpar{a}{12}{15} \FPsetpar{b}{13}{15}[\a] \FPsetpar{c}{2}{4} \FPsetpar{k}{4}{5}[\c] \begin{problem}[4] $a=\a$, $b=\b$, $c=\c$, $k=\k$ If $A=\left\{a,b,c,d,\a,\c,\k\right\}$ and $B=\left\{c,a,\c,1,\b\right\}$ then \\ $A\cup B=$\fillin[u]{4cm}{$\left\{a,b,c,d,\a,\c,\k,\b,1\right\}$}\\ $ A\cap B=$\fillin[u]{4cm}{$\left\{a,c,\c\right\}$} \\ $A\setminus B$=\fillin{60pt}{$\left\{b,d,\k\right\}$} \end{problem} }