Răspuns :
42cm+260mm-3.6dm = 42cm+26cm-36cm=32cm
sau
42cm+260mm-3.6dm=420mm+260mm-360mm=320mm
Sau
42cm+260mm-3.6dm = 4.2 dm+2.6dm-3.6dm=3.2dm
sau
42cm+260mm-3.6dm=420mm+260mm-360mm=320mm
Sau
42cm+260mm-3.6dm = 4.2 dm+2.6dm-3.6dm=3.2dm