Question

Effectueaza operatiile: a) 12 hm - 3200 cm + 730 dam = ? m b) 130 hm + 12000 m - 800 dam = ? km c) 13000 mm + 79 hm - 480 dm = ? m d) 31 km + 45 hm - 700m = ? dam

Answer 1

a)

12 hm - 3200 cm + 730 dam = ? m

= 1 200 m - 32 m + 7 300 m =

= 1 168 m + 7 300 m =

= 8 468 m

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b)

130 hm + 12000 m - 800 dam = ? km

= 13 km + 12 km - 8 km =

= 25 km - 8 km =

= 17 km

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c) 13000 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 + 45 hm - 700m = ? dam

= 3 100 dam + 450 dam - 70 dam =

= 3 550 dam - 70 dam =

= 3 480 dam