Answer:
1) 22 Kg + 34 kg = 56 kg
2) 94 L + 28 L = 122 L
3) 46 cm + 56 mm = (46×10) + 56 = 516 mm
4) 98 cm + 45 m = 98 + (45×100) = 4,598 cm
5) 234 g + 29 Kg = 234 + (29×1000) = 29,234 Kg
6) 40 Km + 35 mm = (40×1,000,000) + 35 = 40,000,035 mm
7) 89 KL + 56 L = (89×1000) + 56 = 89,056 L
8) 783 km + 354 km = 1,137 km
9) 95 L + 456 cL = (95×100) + 456 = 9,956 cL
10) 45 cm + 78 m = 45 + (78×100) = 7,846 cm
11) 19 1/7 mm + 65 2/3 mm = 84 17/21 mm
12) 77 km 8/3 m + 41 km 15 m = 118 km 53/3 m
13) 56 kL 4/5L + 98 KL 1/5 L = 154 KL 1 L
14) 46 kg 77g + 71 kg = 117 kg 77 g
15) 34 m 3/7 cm + 231m 3/5 cm = 265 m 36/35 cm
16) 782 L 56 mL + 67 L 2/9mL = 849 L 506/9 mL
17) 35 km 1/7 cm + 78 Km 2/8 cm = 113 km 11/28 cm
18) 208 kL 65 mL + 51 kL 72 mL = 259 kL 137 mL
19) 635 cm + 89 cm = 724 cm
20) 524 kg 12 cg + 34 kg 3/8 cg = 558 kg 99/8 cg