Question

1. Express 32.8 km to (a) mm (b) cm (c) m 2. Express 645 cm to (a) km (b) m (c) mm 3. Find the sum of 160 cm, 0.5 km, 30 m, and 742 mm, leave your answers in metres.

Answer 1

Answer:

6.45 m

532.342m (sum)

3280000 cm

Answer 2

Step-by-step explanation:

1 . (a) km to mm

1km = 1000000 mm

32.8km = 3280000 mm

(b) km to cm

1 km = 100000 cm

32.8 km = 328000 cm

(c) km to m

1km = 1000 m

32.8 km = 32800 m

2. (a) cm to km

1 cm = 1 / 100000 km

645 cm = 645 / 100000 km

128 / 20000

155.03 km

(b) cm to m

1 cm = 1 / 100 m

645 cm = 645 / 100 m

6.45 m

(c) cm to mm

1 cm = 10 mm

645 cm = 6450 mm

3. 160 cm + 0.5 cm + 30 m + 742 mm

1600 mm + 5 mm + 30000 mm + 742 mm

32347 mm

32.347 metres