$20\times 13$

$130/5$

$\mathrm{1,12}\times 50$

$\mathrm{28,40}/40$

$7\times 42=294$, dus $294$ is ... van $7$ en $42$.

$42/7=6$, dus $6$ is ... van $42$ en $7$.

$624\times 39$

$624/39$

$5967\times 17$

$5967/17$

$\mathrm{32,24}\times \mathrm{1,24}$

$\mathrm{32,24}/\mathrm{1,24}$