a) 35 kg + 28 kg = 63 kg 72 kg – 15 kg = 57 kg
2 kg × 10 = 20 kg 15 kg : 5 = 3 kg
b) 76 \(l\) + 15 \(l\) = 91 \(l\) 85 \(l\) – 27 \(l\) = 58 \(l\)
2 \(l\) × 8 = 16 \(l\) 30 \(l\) : 5 = 6 \(l\)
c) 7 km + 3 km = 10 km 35 m – 8 m = 27 m
5 cm × 4 = 20 cm 20 dm : 5 = 4 dm