a) 13 dam + 170 dm =[ 9 km + 15 m = 63 hm - 1 300 cm = E dm b) 13 km + 400 dm = 23 hm - 4 000 dm= dam da m 63 hm - 1 300 cm = m mm 18 dm - 50 cm = dm 18 dm - 5 cm = [ c) 570 hm : 3 =[ km 64 000 m: 4 = hm 16 km x 3 = dam 7 cm x 21 = mm 156 d) 16 x 15 dam = 70 dm : 2 =| 165 000 cm: 3 = 20 000 m: 5 = M mm d km​