Help! 9 kg 300 +7 kg 50 + 15 kg 4 = 3 dm 7 cm + 1 cm 3 mm + 1 m 15 mm = 2 min. 20 with + 5 min. 48 with + 3 min. 12 with =

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9kg300g =9300g 7kg50g =750g 15kg4g =154g 9300 g +750g +154g =10204g 3dm7sm =370mm 1sm3mm =13mm 1m15mm =1015mm 370 mm +13mm +1015mm =1398mm 2min20s =220s 5min48s =548s 3min12s =312s 220s +548s +312s =1080s
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