a)
12 hm - 3 200 cm + 730 dam = ? m
= 1 200 m - 32 m + 73 m =
= 1 168 m + 73 m =
= 1 241 m
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b)
130 hm + 12 000 m - 800 dam = ? km
= 13 km + 12 km - 8 km =
= 25 km - 8 km =
= 17 km
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c)
13 000 mm + 79 hm - 480 dm = ? m
= 13 m + 7 900 m - 48 m =
= 7 913 m - 48 m =
= 7 865 m
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d)
31 km + 700 m = ? dam
3 100 dam + 70 dam = 3 170 dam
