Question

efectuează operațiile 12 hm-3200cm +730dam =? m b) 130hm+12000m-800dam=?km c) 13000mm+79hm480dm=?m d) 31km+700m=?dam

Answer 1

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