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Efectuează:
1t-1q-1kg=____kg
123g+47dag-19g=_____g
1q-10kg-13.000g=____kg
(32kg +420 dag) ×5=____dag
42kg:7+36 hg:10=_____kg
53kg×6:2=______dg
628 kg+ 1720 dg=_____g
420 cg + 38 dg =______g