Question

2. Calculati in decimetri:
a) 0.125 km + 14 dam + 43.5 m +1243 cm;
b) 5 dam + 4320 cm - 2,4 m +0,12 hm.
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Answer 1

a) 0.125 km + 14 dam + 43.5 m + 1243 cm = 0.125 × 10000 + 14 × 100 + 43.5 × 10 + 1243 : 10 = 1250 + 1400 + 435 + 124,3 = 3209,3 dm

b) 5 dam + 4320 cm - 2,4 m + 0,12 hm = 5 × 100 + 4320 : 10 - 2,4 × 10 + 0.12 × 1000 = 500 + 432 - 24 + 120 = 1028 dm