1m=......cm, 1, 10, 100, 1000, 1km=.......m, 1, 10, 100, 1000, 1m 30 cm + 2m =?, 3m 30 cm, 4m 30cm, 5m 30cm, 330 m, 5m 20 cm - 5m =.........., 20m, 20 cm, 5m, 5cm, 2m 50 cm x 4=?, 5m, 10m, 20m, 30m, 5 m 25 cm ⌯ 5=?, 1m 25cm, 1m 50cm, 1 m 05 cm, 5m, 3m 40 cm =.......cm, 340, 304, 344, 325, 7 km 400 m=........................m, 740, 704, 7400, 7004, 8km 500m x 2=?, 16km 500m, 17km 500m, 17km, 18km, 5699 m =............., 5km 699m, 56km 99m, 569 km 9m, 5m 699cm

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