$1,2$ $giờ$ $= 1,2 × 60 = 72$ $phút$
$2,018$ $m²$ $= 2,018 × 100 = 201,8$ $dm²$
$2$ $ngày$ $6$ $giờ$ $= 2 ×24 +6 = 54$ $giờ$
$4$ $m²$ $59$ $dm²$ $= 4 +59 ÷ 100 = 4,59$ $m²$
$8$ $tấn$ $5$ $yến$ $= 8 ×10 +5 ÷10 = 80,5$ $tạ$
$2$ $km²$ $95$ $hm²$ $= 2 +95 ÷100 = 2,95$ $km²$